9313137839 has 2 divisors, whose sum is σ = 9313137840. Its totient is φ = 9313137838.

The previous prime is 9313137811. The next prime is 9313137877. The reversal of 9313137839 is 9387313139.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9313137839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9313137793 and 9313137802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9313137809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4656568919 + 4656568920.

It is an arithmetic number, because the mean of its divisors is an integer number (4656568920).

Almost surely, 2^9313137839 is an apocalyptic number.

9313137839 is a deficient number, since it is larger than the sum of its proper divisors (1).

9313137839 is an equidigital number, since it uses as much as digits as its factorization.

9313137839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 47.

The square root of 9313137839 is about 96504.6000924308. The cubic root of 9313137839 is about 2103.9335072953.

The spelling of 9313137839 in words is "nine billion, three hundred thirteen million, one hundred thirty-seven thousand, eight hundred thirty-nine".