131301587 has 2 divisors, whose sum is σ = 131301588. Its totient is φ = 131301586.

The previous prime is 131301551. The next prime is 131301607. The reversal of 131301587 is 785103131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131301587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131301187) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65650793 + 65650794.

It is an arithmetic number, because the mean of its divisors is an integer number (65650794).

Almost surely, 2^131301587 is an apocalyptic number.

131301587 is a deficient number, since it is larger than the sum of its proper divisors (1).

131301587 is an equidigital number, since it uses as much as digits as its factorization.

131301587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 131301587 is about 11458.6904574650. The cubic root of 131301587 is about 508.2647510689.

The spelling of 131301587 in words is "one hundred thirty-one million, three hundred one thousand, five hundred eighty-seven".