| Base | Representation |
|---|---|
| bin | 1110011100111… |
| … | …10001110101011 |
| 3 | 22110010100021000 |
| 4 | 13032132032223 |
| 5 | 222013444342 |
| 6 | 20010250043 |
| 7 | 3001321623 |
| oct | 716361653 |
| 9 | 273110230 |
| 10 | 121234347 |
| 11 | 62485183 |
| 12 | 34726923 |
| 13 | 1c169a00 |
| 14 | 1215b883 |
| 15 | a99b44c |
| hex | 739e3ab |
121234347 has 36 divisors (see below), whose sum is σ = 195685560. Its totient is φ = 74148048.
The previous prime is 121234339. The next prime is 121234349. The reversal of 121234347 is 743432121.
It is a happy number.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It is not a de Polignac number, because 121234347 - 23 = 121234339 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an alternating number because its digits alternate between odd and even.
It is a self number, because there is not a number n which added to its sum of digits gives 121234347.
It is not an unprimeable number, because it can be changed into a prime (121234349) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 743688 + ... + 743850.
It is an arithmetic number, because the mean of its divisors is an integer number (5435710).
Almost surely, 2121234347 is an apocalyptic number.
121234347 is a deficient number, since it is larger than the sum of its proper divisors (74451213).
121234347 is an equidigital number, since it uses as much as digits as its factorization.
121234347 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 361 (or 179 counting only the distinct ones).
The product of its digits is 4032, while the sum is 27.
The square root of 121234347 is about 11010.6469837154. The cubic root of 121234347 is about 494.9278499065.
Multiplying 121234347 by its sum of digits (27), we get a square (3273327369 = 572132).
121234347 divided by its sum of digits (27) gives a square (4490161 = 21192).
Adding to 121234347 its reverse (743432121), we get a palindrome (864666468).
The spelling of 121234347 in words is "one hundred twenty-one million, two hundred thirty-four thousand, three hundred forty-seven".
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