157187587 has 2 divisors, whose sum is σ = 157187588. Its totient is φ = 157187586.

The previous prime is 157187549. The next prime is 157187603. The reversal of 157187587 is 785781751.

It is a strong prime.

It is an emirp because it is prime and its reverse (785781751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157187587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157187587.

It is not a weakly prime, because it can be changed into another prime (157188587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78593793 + 78593794.

It is an arithmetic number, because the mean of its divisors is an integer number (78593794).

Almost surely, 2^157187587 is an apocalyptic number.

157187587 is a deficient number, since it is larger than the sum of its proper divisors (1).

157187587 is an equidigital number, since it uses as much as digits as its factorization.

157187587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 548800, while the sum is 49.

The square root of 157187587 is about 12537.4473877261. The cubic root of 157187587 is about 539.6838421390.

The spelling of 157187587 in words is "one hundred fifty-seven million, one hundred eighty-seven thousand, five hundred eighty-seven".