6131532013 has 2 divisors, whose sum is σ = 6131532014. Its totient is φ = 6131532012.

The previous prime is 6131531963. The next prime is 6131532049. The reversal of 6131532013 is 3102351316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4866876169 + 1264655844 = 69763^2 + 35562^2 .

It is a cyclic number.

It is not a de Polignac number, because 6131532013 - 2²⁹ = 5594661101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6131532413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3065766006 + 3065766007.

It is an arithmetic number, because the mean of its divisors is an integer number (3065766007).

Almost surely, 2^6131532013 is an apocalyptic number.

It is an amenable number.

6131532013 is a deficient number, since it is larger than the sum of its proper divisors (1).

6131532013 is an equidigital number, since it uses as much as digits as its factorization.

6131532013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 6131532013 is about 78304.0995925501. The cubic root of 6131532013 is about 1830.3030357055.

Adding to 6131532013 its reverse (3102351316), we get a palindrome (9233883329).

The spelling of 6131532013 in words is "six billion, one hundred thirty-one million, five hundred thirty-two thousand, thirteen".