157975871 has 4 divisors (see below), whose sum is σ = 158484144. Its totient is φ = 157467600.

The previous prime is 157975859. The next prime is 157975877. The reversal of 157975871 is 178579751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157975871 - 2¹⁸ = 157713727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157975877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253670 + ... + 254291.

It is an arithmetic number, because the mean of its divisors is an integer number (39621036).

Almost surely, 2^157975871 is an apocalyptic number.

157975871 is a deficient number, since it is larger than the sum of its proper divisors (508273).

157975871 is an equidigital number, since it uses as much as digits as its factorization.

157975871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508272.

The product of its digits is 617400, while the sum is 50.

The square root of 157975871 is about 12568.8452532442. The cubic root of 157975871 is about 540.5844962850.

The spelling of 157975871 in words is "one hundred fifty-seven million, nine hundred seventy-five thousand, eight hundred seventy-one".