131387576 has 8 divisors (see below), whose sum is σ = 246351720. Its totient is φ = 65693784.

The previous prime is 131387573. The next prime is 131387587. The reversal of 131387576 is 675783131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131387573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8211716 + ... + 8211731.

It is an arithmetic number, because the mean of its divisors is an integer number (30793965).

Almost surely, 2^131387576 is an apocalyptic number.

It is an amenable number.

131387576 is a deficient number, since it is larger than the sum of its proper divisors (114964144).

131387576 is a wasteful number, since it uses less digits than its factorization.

131387576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16423453 (or 16423449 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 131387576 is about 11462.4419736808. The cubic root of 131387576 is about 508.3756805236.

The spelling of 131387576 in words is "one hundred thirty-one million, three hundred eighty-seven thousand, five hundred seventy-six".