972533131 has 2 divisors, whose sum is σ = 972533132. Its totient is φ = 972533130.

The previous prime is 972533129. The next prime is 972533137. The reversal of 972533131 is 131335279.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 972533131 - 2¹ = 972533129 is a prime.

It is a super-2 number, since 2×972533131² = 1891641381785326322, which contains 22 as substring.

Together with 972533129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (972533137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486266565 + 486266566.

It is an arithmetic number, because the mean of its divisors is an integer number (486266566).

Almost surely, 2^972533131 is an apocalyptic number.

972533131 is a deficient number, since it is larger than the sum of its proper divisors (1).

972533131 is an equidigital number, since it uses as much as digits as its factorization.

972533131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 34.

The square root of 972533131 is about 31185.4634565530. The cubic root of 972533131 is about 990.7592485396.

The spelling of 972533131 in words is "nine hundred seventy-two million, five hundred thirty-three thousand, one hundred thirty-one".