131037587 has 2 divisors, whose sum is σ = 131037588. Its totient is φ = 131037586.

The previous prime is 131037583. The next prime is 131037619. The reversal of 131037587 is 785730131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131037587 - 2² = 131037583 is a prime.

It is not a weakly prime, because it can be changed into another prime (131037583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65518793 + 65518794.

It is an arithmetic number, because the mean of its divisors is an integer number (65518794).

Almost surely, 2^131037587 is an apocalyptic number.

131037587 is a deficient number, since it is larger than the sum of its proper divisors (1).

131037587 is an equidigital number, since it uses as much as digits as its factorization.

131037587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 131037587 is about 11447.1650202135. The cubic root of 131037587 is about 507.9238769831.

The spelling of 131037587 in words is "one hundred thirty-one million, thirty-seven thousand, five hundred eighty-seven".