157639087 has 2 divisors, whose sum is σ = 157639088. Its totient is φ = 157639086.

The previous prime is 157639073. The next prime is 157639103. The reversal of 157639087 is 780936751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157639087 - 2⁷ = 157638959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157639037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78819543 + 78819544.

It is an arithmetic number, because the mean of its divisors is an integer number (78819544).

Almost surely, 2^157639087 is an apocalyptic number.

157639087 is a deficient number, since it is larger than the sum of its proper divisors (1).

157639087 is an equidigital number, since it uses as much as digits as its factorization.

157639087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 157639087 is about 12555.4405338881. The cubic root of 157639087 is about 540.2000710402.

The spelling of 157639087 in words is "one hundred fifty-seven million, six hundred thirty-nine thousand, eighty-seven".