102656231 has 4 divisors (see below), whose sum is σ = 102735264. Its totient is φ = 102577200.

The previous prime is 102656227. The next prime is 102656233. The reversal of 102656231 is 132656201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102656231 - 2² = 102656227 is a prime.

It is a super-2 number, since 2×102656231² = 21076603526250722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102656231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102656233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37535 + ... + 40176.

It is an arithmetic number, because the mean of its divisors is an integer number (25683816).

Almost surely, 2^102656231 is an apocalyptic number.

102656231 is a deficient number, since it is larger than the sum of its proper divisors (79033).

102656231 is an equidigital number, since it uses as much as digits as its factorization.

102656231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79032.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 102656231 is about 10131.9411269509. The cubic root of 102656231 is about 468.2327339160.

The spelling of 102656231 in words is "one hundred two million, six hundred fifty-six thousand, two hundred thirty-one".