6149031613 has 2 divisors, whose sum is σ = 6149031614. Its totient is φ = 6149031612.

The previous prime is 6149031587. The next prime is 6149031643. The reversal of 6149031613 is 3161309416.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4719964804 + 1429066809 = 68702^2 + 37803^2 .

It is a cyclic number.

It is not a de Polignac number, because 6149031613 - 2⁹ = 6149031101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6149031643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3074515806 + 3074515807.

It is an arithmetic number, because the mean of its divisors is an integer number (3074515807).

Almost surely, 2^6149031613 is an apocalyptic number.

It is an amenable number.

6149031613 is a deficient number, since it is larger than the sum of its proper divisors (1).

6149031613 is an equidigital number, since it uses as much as digits as its factorization.

6149031613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 6149031613 is about 78415.7612537174. The cubic root of 6149031613 is about 1832.0426307473.

The spelling of 6149031613 in words is "six billion, one hundred forty-nine million, thirty-one thousand, six hundred thirteen".