975531523 has 2 divisors, whose sum is σ = 975531524. Its totient is φ = 975531522.

The previous prime is 975531521. The next prime is 975531533. The reversal of 975531523 is 325135579.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 975531523 - 2¹ = 975531521 is a prime.

Together with 975531521, it forms a pair of twin primes.

It is the 31234-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (975531521) by changing a digit.

It is a nontrivial repunit in base 31233.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487765761 + 487765762.

It is an arithmetic number, because the mean of its divisors is an integer number (487765762).

Almost surely, 2^975531523 is an apocalyptic number.

975531523 is a deficient number, since it is larger than the sum of its proper divisors (1).

975531523 is an equidigital number, since it uses as much as digits as its factorization.

975531523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141750, while the sum is 40.

The square root of 975531523 is about 31233.5000120063. The cubic root of 975531523 is about 991.7763987636.

The spelling of 975531523 in words is "nine hundred seventy-five million, five hundred thirty-one thousand, five hundred twenty-three".