102539560 has 16 divisors (see below), whose sum is σ = 230714100. Its totient is φ = 41015808.

The previous prime is 102539557. The next prime is 102539603. The reversal of 102539560 is 65935201.

It can be written as a sum of positive squares in 2 ways, for example, as 99560484 + 2979076 = 9978^2 + 1726^2 .

It is a super-2 number, since 2×102539560² = 21028722729987200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281705 + ... + 1281784.

Almost surely, 2^102539560 is an apocalyptic number.

102539560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102539560 is an abundant number, since it is smaller than the sum of its proper divisors (128174540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102539560 is a wasteful number, since it uses less digits than its factorization.

102539560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563500 (or 2563496 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 102539560 is about 10126.1819063258. The cubic root of 102539560 is about 468.0552811704.

The spelling of 102539560 in words is "one hundred two million, five hundred thirty-nine thousand, five hundred sixty".