132809920 has 28 divisors (see below), whose sum is σ = 316254384. Its totient is φ = 53123840.

The previous prime is 132809893. The next prime is 132809927. The reversal of 132809920 is 29908231.

It is not an unprimeable number, because it can be changed into a prime (132809927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207196 + ... + 207835.

Almost surely, 2^132809920 is an apocalyptic number.

132809920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132809920 is an abundant number, since it is smaller than the sum of its proper divisors (183444464).

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

132809920 is an equidigital number, since it uses as much as digits as its factorization.

132809920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415048 (or 415038 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 132809920 is about 11524.3186349563. The cubic root of 132809920 is about 510.2035839786.

The spelling of 132809920 in words is "one hundred thirty-two million, eight hundred nine thousand, nine hundred twenty".