131328500 has 24 divisors (see below), whose sum is σ = 286822536. Its totient is φ = 52531200.

The previous prime is 131328479. The next prime is 131328511. The reversal of 131328500 is 5823131.

It can be written as a sum of positive squares in 4 ways, for example, as 729316 + 130599184 = 854^2 + 11428^2 .

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, 130829 + ... + 131828.

It is an arithmetic number, because the mean of its divisors is an integer number (11950939).

Almost surely, 2^131328500 is an apocalyptic number.

131328500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131328500 is an abundant number, since it is smaller than the sum of its proper divisors (155494036).

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

131328500 is a wasteful number, since it uses less digits than its factorization.

131328500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262676 (or 262664 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 131328500 is about 11459.8647461477. The cubic root of 131328500 is about 508.2994751852.

The spelling of 131328500 in words is "one hundred thirty-one million, three hundred twenty-eight thousand, five hundred".