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121413325 = 52111921223
BaseRepresentation
bin1110011110010…
…01111011001101
322110110102202211
413033021323031
5222040211300
620014150421
73002665465
oct717117315
9273412684
10121413325
11625976a0
12347b2411
131c200307
14121a6ba5
15a9d44ba
hex73c9ecd

121413325 has 36 divisors (see below), whose sum is σ = 173479968. Its totient is φ = 83584800.

The previous prime is 121413323. The next prime is 121413359. The reversal of 121413325 is 523314121.

It is a happy number.

It is not a de Polignac number, because 121413325 - 21 = 121413323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121413296 and 121413305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121413323) 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, 98664 + ... + 99886.

It is an arithmetic number, because the mean of its divisors is an integer number (4818888).

Almost surely, 2121413325 is an apocalyptic number.

It is an amenable number.

121413325 is a deficient number, since it is larger than the sum of its proper divisors (52066643).

121413325 is a wasteful number, since it uses less digits than its factorization.

121413325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1258 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 121413325 is about 11018.7714832462. The cubic root of 121413325 is about 495.1712837844.

Adding to 121413325 its reverse (523314121), we get a palindrome (644727446).

The spelling of 121413325 in words is "one hundred twenty-one million, four hundred thirteen thousand, three hundred twenty-five".

Divisors: 1 5 11 19 25 55 95 209 275 361 475 1045 1223 1805 3971 5225 6115 9025 13453 19855 23237 30575 67265 99275 116185 255607 336325 441503 580925 1278035 2207515 4856533 6390175 11037575 24282665 121413325