2631164531 has 4 divisors (see below), whose sum is σ = 2675760600. Its totient is φ = 2586568464.

The previous prime is 2631164521. The next prime is 2631164533. The reversal of 2631164531 is 1354611362.

2631164531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2631164531 - 2⁶ = 2631164467 is a prime.

It is a super-2 number, since 2×2631164531² = 13846053578384899922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631164533) 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, 22297946 + ... + 22298063.

It is an arithmetic number, because the mean of its divisors is an integer number (668940150).

Almost surely, 2^2631164531 is an apocalyptic number.

2631164531 is a deficient number, since it is larger than the sum of its proper divisors (44596069).

2631164531 is an equidigital number, since it uses as much as digits as its factorization.

2631164531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44596068.

The product of its digits is 12960, while the sum is 32.

The square root of 2631164531 is about 51294.8782141063. The cubic root of 2631164531 is about 1380.5410835902.

Adding to 2631164531 its reverse (1354611362), we get a palindrome (3985775893).

The spelling of 2631164531 in words is "two billion, six hundred thirty-one million, one hundred sixty-four thousand, five hundred thirty-one".