2513765131 has 2 divisors, whose sum is σ = 2513765132. Its totient is φ = 2513765130.

The previous prime is 2513765123. The next prime is 2513765159. The reversal of 2513765131 is 1315673152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2513765131 - 2³ = 2513765123 is a prime.

It is a super-2 number, since 2×2513765131² = 12638030267662894322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2513765171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256882565 + 1256882566.

It is an arithmetic number, because the mean of its divisors is an integer number (1256882566).

Almost surely, 2^2513765131 is an apocalyptic number.

2513765131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2513765131 is an equidigital number, since it uses as much as digits as its factorization.

2513765131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 34.

The square root of 2513765131 is about 50137.4623510205. The cubic root of 2513765131 is about 1359.6952047282.

The spelling of 2513765131 in words is "two billion, five hundred thirteen million, seven hundred sixty-five thousand, one hundred thirty-one".