102529920 has 64 divisors (see below), whose sum is σ = 326820240. Its totient is φ = 27340800.

The previous prime is 102529879. The next prime is 102529937. The reversal of 102529920 is 29925201.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 24781 + ... + 28620.

Almost surely, 2^102529920 is an apocalyptic number.

102529920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102529920 is an abundant number, since it is smaller than the sum of its proper divisors (224290320).

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

102529920 is an equidigital number, since it uses as much as digits as its factorization.

102529920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53423 (or 53411 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 102529920 is about 10125.7059013187. The cubic root of 102529920 is about 468.0406130289.

The spelling of 102529920 in words is "one hundred two million, five hundred twenty-nine thousand, nine hundred twenty".