972131163 has 4 divisors (see below), whose sum is σ = 1296174888. Its totient is φ = 648087440.

The previous prime is 972131131. The next prime is 972131177. The reversal of 972131163 is 361131279.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 972131163 - 2⁵ = 972131131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (972131113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162021858 + ... + 162021863.

It is an arithmetic number, because the mean of its divisors is an integer number (324043722).

Almost surely, 2^972131163 is an apocalyptic number.

972131163 is a deficient number, since it is larger than the sum of its proper divisors (324043725).

972131163 is a wasteful number, since it uses less digits than its factorization.

972131163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324043724.

The product of its digits is 6804, while the sum is 33.

The square root of 972131163 is about 31179.0179928746. The cubic root of 972131163 is about 990.6227293191.

The spelling of 972131163 in words is "nine hundred seventy-two million, one hundred thirty-one thousand, one hundred sixty-three".