123656855 has 16 divisors (see below), whose sum is σ = 176961024. Its totient is φ = 81106080.

The previous prime is 123656839. The next prime is 123656857. The reversal of 123656855 is 558656321.

It is not a de Polignac number, because 123656855 - 2⁴ = 123656839 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 (123656857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76001 + ... + 77610.

It is an arithmetic number, because the mean of its divisors is an integer number (11060064).

Almost surely, 2^123656855 is an apocalyptic number.

123656855 is a deficient number, since it is larger than the sum of its proper divisors (53304169).

123656855 is a wasteful number, since it uses less digits than its factorization.

123656855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153646.

The product of its digits is 216000, while the sum is 41.

The square root of 123656855 is about 11120.1103861428. The cubic root of 123656855 is about 498.2026870737.

The spelling of 123656855 in words is "one hundred twenty-three million, six hundred fifty-six thousand, eight hundred fifty-five".