131620288 has 28 divisors (see below), whose sum is σ = 262112760. Its totient is φ = 65576192.

The previous prime is 131620261. The next prime is 131620289. The reversal of 131620288 is 882026131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131620289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15243 + ... + 22261.

It is an arithmetic number, because the mean of its divisors is an integer number (9361170).

Almost surely, 2^131620288 is an apocalyptic number.

It is an amenable number.

131620288 is a deficient number, since it is larger than the sum of its proper divisors (130492472).

131620288 is an equidigital number, since it uses as much as digits as its factorization.

131620288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324 (or 7314 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 131620288 is about 11472.5885483617. The cubic root of 131620288 is about 508.6756463366.

The spelling of 131620288 in words is "one hundred thirty-one million, six hundred twenty thousand, two hundred eighty-eight".