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144122101 = 151954451
BaseRepresentation
bin10001001011100…
…10000011110101
3101001012011100121
420211302003311
5243343401401
622145011541
73400006024
oct1045620365
9331164317
10144122101
1174398082
1240323bb1
1323b21666
14151d88bb
15c9bcca1
hex89720f5

144122101 has 4 divisors (see below), whose sum is σ = 145076704. Its totient is φ = 143167500.

The previous prime is 144122063. The next prime is 144122123. The reversal of 144122101 is 101221441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101221441 = 432353987.

It is a cyclic number.

It is not a de Polignac number, because 144122101 - 219 = 143597813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144122501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477075 + ... + 477376.

It is an arithmetic number, because the mean of its divisors is an integer number (36269176).

Almost surely, 2144122101 is an apocalyptic number.

It is an amenable number.

144122101 is a deficient number, since it is larger than the sum of its proper divisors (954603).

144122101 is an equidigital number, since it uses as much as digits as its factorization.

144122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954602.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 144122101 is about 12005.0864636620. The cubic root of 144122101 is about 524.2963828898.

Adding to 144122101 its reverse (101221441), we get a palindrome (245343542).

The spelling of 144122101 in words is "one hundred forty-four million, one hundred twenty-two thousand, one hundred one".

Divisors: 1 151 954451 144122101