2645131 has 2 divisors, whose sum is σ = 2645132. Its totient is φ = 2645130.

The previous prime is 2645129. The next prime is 2645141. The reversal of 2645131 is 1315462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2645131 - 2¹ = 2645129 is a prime.

It is a super-2 number, since 2×2645131² = 13993436014322, which contains 22 as substring.

Together with 2645129, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2645101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322565 + 1322566.

It is an arithmetic number, because the mean of its divisors is an integer number (1322566).

2^2645131 is an apocalyptic number.

2645131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645131 is an equidigital number, since it uses as much as digits as its factorization.

2645131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 2645131 is about 1626.3858705732. The cubic root of 2645131 is about 138.2979454971.

The spelling of 2645131 in words is "two million, six hundred forty-five thousand, one hundred thirty-one".