157915 has 4 divisors (see below), whose sum is σ = 189504. Its totient is φ = 126328.

The previous prime is 157907. The next prime is 157931. The reversal of 157915 is 519751.

157915 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 519751 = 307 ⋅1693.

It is a cyclic number.

It is not a de Polignac number, because 157915 - 2³ = 157907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15787 + ... + 15796.

It is an arithmetic number, because the mean of its divisors is an integer number (47376).

2¹⁵⁷⁹¹⁵ is an apocalyptic number.

157915 is a deficient number, since it is larger than the sum of its proper divisors (31589).

157915 is an equidigital number, since it uses as much as digits as its factorization.

157915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31588.

The product of its digits is 1575, while the sum is 28.

The square root of 157915 is about 397.3852035494. The cubic root of 157915 is about 54.0515054992.

The spelling of 157915 in words is "one hundred fifty-seven thousand, nine hundred fifteen".