2031164531 has 4 divisors (see below), whose sum is σ = 2215815864. Its totient is φ = 1846513200.

The previous prime is 2031164507. The next prime is 2031164557. The reversal of 2031164531 is 1354611302.

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 2031164531 - 2²² = 2026970227 is a prime.

It is a super-2 number, since 2×2031164531² = 8251258703984899922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031164531.

It is not an unprimeable number, because it can be changed into a prime (2031164591) 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, 92325650 + ... + 92325671.

It is an arithmetic number, because the mean of its divisors is an integer number (553953966).

Almost surely, 2^2031164531 is an apocalyptic number.

2031164531 is a deficient number, since it is larger than the sum of its proper divisors (184651333).

2031164531 is a wasteful number, since it uses less digits than its factorization.

2031164531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184651332.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2031164531 is about 45068.4427399039. The cubic root of 2031164531 is about 1266.4314917115.

Adding to 2031164531 its reverse (1354611302), we get a palindrome (3385775833).

The spelling of 2031164531 in words is "two billion, thirty-one million, one hundred sixty-four thousand, five hundred thirty-one".