131407040 has 56 divisors (see below), whose sum is σ = 329397360. Its totient is φ = 49794048.

The previous prime is 131407039. The next prime is 131407043. The reversal of 131407040 is 40704131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (131407043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4727 + ... + 16886.

Almost surely, 2^131407040 is an apocalyptic number.

131407040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131407040 is an abundant number, since it is smaller than the sum of its proper divisors (197990320).

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

131407040 is a wasteful number, since it uses less digits than its factorization.

131407040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21649 (or 21639 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 131407040 is about 11463.2909759807. The cubic root of 131407040 is about 508.4007831905.

The spelling of 131407040 in words is "one hundred thirty-one million, four hundred seven thousand, forty".