131404524 has 24 divisors (see below), whose sum is σ = 307839168. Its totient is φ = 43626000.

The previous prime is 131404499. The next prime is 131404529. The reversal of 131404524 is 425404131.

It is a junction number, because it is equal to n+sod(n) for n = 131404494 and 131404503.

It is not an unprimeable number, because it can be changed into a prime (131404529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18802 + ... + 24825.

It is an arithmetic number, because the mean of its divisors is an integer number (12826632).

Almost surely, 2^131404524 is an apocalyptic number.

It is an amenable number.

131404524 is an abundant number, since it is smaller than the sum of its proper divisors (176434644).

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

131404524 is a wasteful number, since it uses less digits than its factorization.

131404524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43885 (or 43883 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 131404524 is about 11463.1812338460. The cubic root of 131404524 is about 508.3975384518.

Adding to 131404524 its reverse (425404131), we get a palindrome (556808655).

The spelling of 131404524 in words is "one hundred thirty-one million, four hundred four thousand, five hundred twenty-four".