131525544 has 16 divisors (see below), whose sum is σ = 328813920. Its totient is φ = 43841840.

The previous prime is 131525539. The next prime is 131525561. The reversal of 131525544 is 445525131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2740092 + ... + 2740139.

It is an arithmetic number, because the mean of its divisors is an integer number (20550870).

Almost surely, 2^131525544 is an apocalyptic number.

It is an amenable number.

131525544 is an abundant number, since it is smaller than the sum of its proper divisors (197288376).

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

131525544 is a wasteful number, since it uses less digits than its factorization.

131525544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480240 (or 5480236 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 131525544 is about 11468.4586584249. The cubic root of 131525544 is about 508.5535640078.

The spelling of 131525544 in words is "one hundred thirty-one million, five hundred twenty-five thousand, five hundred forty-four".