131655144 has 32 divisors (see below), whose sum is σ = 329472000. Its totient is φ = 43840512.

The previous prime is 131655091. The next prime is 131655149. The reversal of 131655144 is 441556131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131655149) 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, 28552 + ... + 32840.

It is an arithmetic number, because the mean of its divisors is an integer number (10296000).

Almost surely, 2^131655144 is an apocalyptic number.

It is an amenable number.

131655144 is an abundant number, since it is smaller than the sum of its proper divisors (197816856).

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

131655144 is a wasteful number, since it uses less digits than its factorization.

131655144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5577 (or 5573 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 131655144 is about 11474.1075469947. The cubic root of 131655144 is about 508.7205452746.

The spelling of 131655144 in words is "one hundred thirty-one million, six hundred fifty-five thousand, one hundred forty-four".