131593687 has 2 divisors, whose sum is σ = 131593688. Its totient is φ = 131593686.

The previous prime is 131593681. The next prime is 131593751. The reversal of 131593687 is 786395131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131593687 - 2¹¹ = 131591639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131593681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65796843 + 65796844.

It is an arithmetic number, because the mean of its divisors is an integer number (65796844).

Almost surely, 2^131593687 is an apocalyptic number.

131593687 is a deficient number, since it is larger than the sum of its proper divisors (1).

131593687 is an equidigital number, since it uses as much as digits as its factorization.

131593687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 131593687 is about 11471.4291611813. The cubic root of 131593687 is about 508.6413755497.

The spelling of 131593687 in words is "one hundred thirty-one million, five hundred ninety-three thousand, six hundred eighty-seven".