131364487 has 2 divisors, whose sum is σ = 131364488. Its totient is φ = 131364486.

The previous prime is 131364479. The next prime is 131364517. The reversal of 131364487 is 784463131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131364487 - 2³ = 131364479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131364427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65682243 + 65682244.

It is an arithmetic number, because the mean of its divisors is an integer number (65682244).

Almost surely, 2^131364487 is an apocalyptic number.

131364487 is a deficient number, since it is larger than the sum of its proper divisors (1).

131364487 is an equidigital number, since it uses as much as digits as its factorization.

131364487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 131364487 is about 11461.4347705686. The cubic root of 131364487 is about 508.3458994893.

The spelling of 131364487 in words is "one hundred thirty-one million, three hundred sixty-four thousand, four hundred eighty-seven".