957139 has 2 divisors, whose sum is σ = 957140. Its totient is φ = 957138.

The previous prime is 957133. The next prime is 957161. The reversal of 957139 is 931759.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 957139 - 2⁵ = 957107 is a prime.

It is a super-2 number, since 2×957139² = 1832230130642, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (957133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478569 + 478570.

It is an arithmetic number, because the mean of its divisors is an integer number (478570).

2⁹⁵⁷¹³⁹ is an apocalyptic number.

957139 is a deficient number, since it is larger than the sum of its proper divisors (1).

957139 is an equidigital number, since it uses as much as digits as its factorization.

957139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505, while the sum is 34.

The square root of 957139 is about 978.3348097661. The cubic root of 957139 is about 98.5503877835.

The spelling of 957139 in words is "nine hundred fifty-seven thousand, one hundred thirty-nine".