972531365 has 16 divisors (see below), whose sum is σ = 1258525296. Its totient is φ = 717196800.

The previous prime is 972531361. The next prime is 972531383. The reversal of 972531365 is 563135279.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 314814049 + 657717316 = 17743^2 + 25646^2 .

It is not a de Polignac number, because 972531365 - 2² = 972531361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972531361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39635 + ... + 59295.

It is an arithmetic number, because the mean of its divisors is an integer number (78657831).

Almost surely, 2^972531365 is an apocalyptic number.

It is an amenable number.

972531365 is a deficient number, since it is larger than the sum of its proper divisors (285993931).

972531365 is a wasteful number, since it uses less digits than its factorization.

972531365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20440.

The product of its digits is 170100, while the sum is 41.

The square root of 972531365 is about 31185.4351420659. The cubic root of 972531365 is about 990.7586488405.

The spelling of 972531365 in words is "nine hundred seventy-two million, five hundred thirty-one thousand, three hundred sixty-five".