2645231131 has 2 divisors, whose sum is σ = 2645231132. Its totient is φ = 2645231130.

The previous prime is 2645231117. The next prime is 2645231179. The reversal of 2645231131 is 1311325462.

2645231131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2645231131 - 2⁷ = 2645231003 is a prime.

It is a super-2 number, since 2×2645231131² = 13994495472823078322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2645231131.

It is not a weakly prime, because it can be changed into another prime (2645231101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322615565 + 1322615566.

It is an arithmetic number, because the mean of its divisors is an integer number (1322615566).

Almost surely, 2^2645231131 is an apocalyptic number.

2645231131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645231131 is an equidigital number, since it uses as much as digits as its factorization.

2645231131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 2645231131 is about 51431.8104970066. The cubic root of 2645231131 is about 1382.9969055712.

Adding to 2645231131 its reverse (1311325462), we get a palindrome (3956556593).

The spelling of 2645231131 in words is "two billion, six hundred forty-five million, two hundred thirty-one thousand, one hundred thirty-one".