102452985 has 32 divisors (see below), whose sum is σ = 188021760. Its totient is φ = 52876800.

The previous prime is 102452947. The next prime is 102452993. The reversal of 102452985 is 589254201.

It is not a de Polignac number, because 102452985 - 2⁸ = 102452729 is a prime.

It is a super-2 number, since 2×102452985² = 20993228270820450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8056 + ... + 16425.

It is an arithmetic number, because the mean of its divisors is an integer number (5875680).

Almost surely, 2^102452985 is an apocalyptic number.

102452985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102452985 is a deficient number, since it is larger than the sum of its proper divisors (85568775).

102452985 is a wasteful number, since it uses less digits than its factorization.

102452985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24526 (or 24520 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 102452985 is about 10121.9061939933. The cubic root of 102452985 is about 467.9235164296.

The spelling of 102452985 in words is "one hundred two million, four hundred fifty-two thousand, nine hundred eighty-five".