102569920 has 56 divisors (see below), whose sum is σ = 250874784. Its totient is φ = 39914496.

The previous prime is 102569881. The next prime is 102569939. The reversal of 102569920 is 29965201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7509 + ... + 16171.

Almost surely, 2^102569920 is an apocalyptic number.

102569920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102569920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125437392).

102569920 is an abundant number, since it is smaller than the sum of its proper divisors (148304864).

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

102569920 is an equidigital number, since it uses as much as digits as its factorization.

102569920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8717 (or 8707 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 102569920 is about 10127.6808796486. The cubic root of 102569920 is about 468.1014706805.

The spelling of 102569920 in words is "one hundred two million, five hundred sixty-nine thousand, nine hundred twenty".