100992520 has 32 divisors (see below), whose sum is σ = 229584600. Its totient is φ = 39979008.

The previous prime is 100992511. The next prime is 100992523. The reversal of 100992520 is 25299001.

It can be written as a sum of positive squares in 4 ways, for example, as 50951044 + 50041476 = 7138^2 + 7074^2 .

It is not an unprimeable number, because it can be changed into a prime (100992523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9135 + ... + 16894.

Almost surely, 2^100992520 is an apocalyptic number.

100992520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100992520 is an abundant number, since it is smaller than the sum of its proper divisors (128592080).

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

100992520 is a wasteful number, since it uses less digits than its factorization.

100992520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26137 (or 26133 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 100992520 is about 10049.5034703213. The cubic root of 100992520 is about 465.6894539846.

The spelling of 100992520 in words is "one hundred million, nine hundred ninety-two thousand, five hundred twenty".