131252587 has 2 divisors, whose sum is σ = 131252588. Its totient is φ = 131252586.

The previous prime is 131252549. The next prime is 131252593. The reversal of 131252587 is 785252131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131252587 is a prime.

It is not a weakly prime, because it can be changed into another prime (131252507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65626293 + 65626294.

It is an arithmetic number, because the mean of its divisors is an integer number (65626294).

Almost surely, 2^131252587 is an apocalyptic number.

131252587 is a deficient number, since it is larger than the sum of its proper divisors (1).

131252587 is an equidigital number, since it uses as much as digits as its factorization.

131252587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 34.

The square root of 131252587 is about 11456.5521427697. The cubic root of 131252587 is about 508.2015173282.

The spelling of 131252587 in words is "one hundred thirty-one million, two hundred fifty-two thousand, five hundred eighty-seven".