971315572 has 6 divisors (see below), whose sum is σ = 1699802258. Its totient is φ = 485657784.

The previous prime is 971315567. The next prime is 971315573. The reversal of 971315572 is 275513179.

It can be written as a sum of positive squares in only one way, i.e., 707772816 + 263542756 = 26604^2 + 16234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971315573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121414443 + ... + 121414450.

Almost surely, 2^971315572 is an apocalyptic number.

It is an amenable number.

971315572 is a deficient number, since it is larger than the sum of its proper divisors (728486686).

971315572 is a wasteful number, since it uses less digits than its factorization.

971315572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242828897 (or 242828895 counting only the distinct ones).

The product of its digits is 66150, while the sum is 40.

The square root of 971315572 is about 31165.9360841288. The cubic root of 971315572 is about 990.3456168382.

The spelling of 971315572 in words is "nine hundred seventy-one million, three hundred fifteen thousand, five hundred seventy-two".