157139 has 8 divisors (see below), whose sum is σ = 167808. Its totient is φ = 146880.

The previous prime is 157133. The next prime is 157141. The reversal of 157139 is 931751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079 + ... + 1215.

It is an arithmetic number, because the mean of its divisors is an integer number (20976).

2¹⁵⁷¹³⁹ is an apocalyptic number.

157139 is a deficient number, since it is larger than the sum of its proper divisors (10669).

157139 is a wasteful number, since it uses less digits than its factorization.

157139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205.

The product of its digits is 945, while the sum is 26.

The square root of 157139 is about 396.4076184939. The cubic root of 157139 is about 53.9628230621.

The spelling of 157139 in words is "one hundred fifty-seven thousand, one hundred thirty-nine".