975531 has 8 divisors (see below), whose sum is σ = 1345680. Its totient is φ = 627872.

The previous prime is 975523. The next prime is 975551. The reversal of 975531 is 135579.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 975531 - 2³ = 975523 is a prime.

It is a super-2 number, since 2×975531² = 1903321463922, which contains 22 as substring.

It is a nialpdrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 975531.

It is not an unprimeable number, because it can be changed into a prime (975521) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5520 + ... + 5693.

It is an arithmetic number, because the mean of its divisors is an integer number (168210).

2⁹⁷⁵⁵³¹ is an apocalyptic number.

975531 is a deficient number, since it is larger than the sum of its proper divisors (370149).

975531 is a wasteful number, since it uses less digits than its factorization.

975531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11245.

The product of its digits is 4725, while the sum is 30.

The square root of 975531 is about 987.6897286091. The cubic root of 975531 is about 99.1776221527.

The spelling of 975531 in words is "nine hundred seventy-five thousand, five hundred thirty-one".