131576287 has 2 divisors, whose sum is σ = 131576288. Its totient is φ = 131576286.

The previous prime is 131576279. The next prime is 131576297. The reversal of 131576287 is 782675131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131576287 - 2³ = 131576279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131576227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65788143 + 65788144.

It is an arithmetic number, because the mean of its divisors is an integer number (65788144).

Almost surely, 2^131576287 is an apocalyptic number.

131576287 is a deficient number, since it is larger than the sum of its proper divisors (1).

131576287 is an equidigital number, since it uses as much as digits as its factorization.

131576287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 40.

The square root of 131576287 is about 11470.6707301709. The cubic root of 131576287 is about 508.6189561610.

The spelling of 131576287 in words is "one hundred thirty-one million, five hundred seventy-six thousand, two hundred eighty-seven".