102856655 has 24 divisors (see below), whose sum is σ = 136515456. Its totient is φ = 74338880.

The previous prime is 102856643. The next prime is 102856661. The reversal of 102856655 is 556658201.

It is not a de Polignac number, because 102856655 - 2¹⁰ = 102855631 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118754 + ... + 119616.

It is an arithmetic number, because the mean of its divisors is an integer number (5688144).

Almost surely, 2^102856655 is an apocalyptic number.

102856655 is a deficient number, since it is larger than the sum of its proper divisors (33658801).

102856655 is a wasteful number, since it uses less digits than its factorization.

102856655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 102856655 is about 10141.8270050322. The cubic root of 102856655 is about 468.5372586030.

The spelling of 102856655 in words is "one hundred two million, eight hundred fifty-six thousand, six hundred fifty-five".