157239 has 6 divisors (see below), whose sum is σ = 227136. Its totient is φ = 104820.

The previous prime is 157231. The next prime is 157243. The reversal of 157239 is 932751.

It is not a de Polignac number, because 157239 - 2³ = 157231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8727 + ... + 8744.

It is an arithmetic number, because the mean of its divisors is an integer number (37856).

2¹⁵⁷²³⁹ is an apocalyptic number.

157239 is a deficient number, since it is larger than the sum of its proper divisors (69897).

157239 is a wasteful number, since it uses less digits than its factorization.

157239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17477 (or 17474 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 157239 is about 396.5337312260. The cubic root of 157239 is about 53.9742675752.

The spelling of 157239 in words is "one hundred fifty-seven thousand, two hundred thirty-nine".