972471151 has 4 divisors (see below), whose sum is σ = 972537304. Its totient is φ = 972405000.

The previous prime is 972471139. The next prime is 972471191. The reversal of 972471151 is 151174279.

972471151 is a nontrivial binomial coefficient, being equal to C(44102, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(972471151) divides (972471151-1)³.

It is a cyclic number.

It is not a de Polignac number, because 972471151 - 2¹¹ = 972469103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 972471151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972471191) 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, 1 + ... + 44101.

It is an arithmetic number, because the mean of its divisors is an integer number (243134326).

Almost surely, 2^972471151 is an apocalyptic number.

972471151 is the 44101-st triangular number and also the 22051-st hexagonal number.

972471151 is the 14701-st centered nonagonal number.

972471151 is a deficient number, since it is larger than the sum of its proper divisors (66153).

972471151 is a wasteful number, since it uses less digits than its factorization.

972471151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66152.

The product of its digits is 17640, while the sum is 37.

The square root of 972471151 is about 31184.4697084943. The cubic root of 972471151 is about 990.7382009061.

The spelling of 972471151 in words is "nine hundred seventy-two million, four hundred seventy-one thousand, one hundred fifty-one".