102556238 has 16 divisors (see below), whose sum is σ = 159382080. Its totient is φ = 49434336.

The previous prime is 102556199. The next prime is 102556283. The reversal of 102556238 is 832655201.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 63995 + ... + 65577.

It is an arithmetic number, because the mean of its divisors is an integer number (9961380).

Almost surely, 2^102556238 is an apocalyptic number.

102556238 is a deficient number, since it is larger than the sum of its proper divisors (56825842).

102556238 is a wasteful number, since it uses less digits than its factorization.

102556238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 102556238 is about 10127.0053816516. The cubic root of 102556238 is about 468.0806561014.

The spelling of 102556238 in words is "one hundred two million, five hundred fifty-six thousand, two hundred thirty-eight".