975139 has 6 divisors (see below), whose sum is σ = 1071980. Its totient is φ = 886380.

The previous prime is 975133. The next prime is 975151. The reversal of 975139 is 931579.

975139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 975139 - 2⁷ = 975011 is a prime.

It is a Duffinian number.

975139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (975133) 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, 3909 + ... + 4150.

2⁹⁷⁵¹³⁹ is an apocalyptic number.

975139 is a deficient number, since it is larger than the sum of its proper divisors (96841).

975139 is a wasteful number, since it uses less digits than its factorization.

975139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8081 (or 8070 counting only the distinct ones).

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

The square root of 975139 is about 987.4912657842. The cubic root of 975139 is about 99.1643361111.

The spelling of 975139 in words is "nine hundred seventy-five thousand, one hundred thirty-nine".