7859013131 has 2 divisors, whose sum is σ = 7859013132. Its totient is φ = 7859013130.

The previous prime is 7859013103. The next prime is 7859013139. The reversal of 7859013131 is 1313109587.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7859013131 is a prime.

It is a super-2 number, since 2×7859013131² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7859013139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3929506565 + 3929506566.

It is an arithmetic number, because the mean of its divisors is an integer number (3929506566).

Almost surely, 2^7859013131 is an apocalyptic number.

7859013131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7859013131 is an equidigital number, since it uses as much as digits as its factorization.

7859013131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 7859013131 is about 88651.0751824252. The cubic root of 7859013131 is about 1988.1813920714.

The spelling of 7859013131 in words is "seven billion, eight hundred fifty-nine million, thirteen thousand, one hundred thirty-one".