131966520 has 64 divisors (see below), whose sum is σ = 452459520. Its totient is φ = 30163584.

The previous prime is 131966503. The next prime is 131966543. The reversal of 131966520 is 25669131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77712 + ... + 79391.

It is an arithmetic number, because the mean of its divisors is an integer number (7069680).

Almost surely, 2^131966520 is an apocalyptic number.

131966520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131966520 is an abundant number, since it is smaller than the sum of its proper divisors (320493000).

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

131966520 is a wasteful number, since it uses less digits than its factorization.

131966520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157124 (or 157120 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 131966520 is about 11487.6681706950. The cubic root of 131966520 is about 509.1212857957.

The spelling of 131966520 in words is "one hundred thirty-one million, nine hundred sixty-six thousand, five hundred twenty".