102655312 has 10 divisors (see below), whose sum is σ = 198894698. Its totient is φ = 51327648.

The previous prime is 102655303. The next prime is 102655337. The reversal of 102655312 is 213556201.

It can be written as a sum of positive squares in only one way, i.e., 101687056 + 968256 = 10084^2 + 984^2 .

It is a super-2 number, since 2×102655312² = 21076226163634688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207963 + ... + 3207994.

Almost surely, 2^102655312 is an apocalyptic number.

It is an amenable number.

102655312 is a deficient number, since it is larger than the sum of its proper divisors (96239386).

102655312 is an equidigital number, since it uses as much as digits as its factorization.

102655312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415965 (or 6415959 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 102655312 is about 10131.8957752239. The cubic root of 102655312 is about 468.2313366727.

The spelling of 102655312 in words is "one hundred two million, six hundred fifty-five thousand, three hundred twelve".