9131904713 has 2 divisors, whose sum is σ = 9131904714. Its totient is φ = 9131904712.

The previous prime is 9131904709. The next prime is 9131904757. The reversal of 9131904713 is 3174091319.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8954269129 + 177635584 = 94627^2 + 13328^2 .

It is a cyclic number.

It is not a de Polignac number, because 9131904713 - 2² = 9131904709 is a prime.

It is a super-2 number, since 2×9131904713² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9131906713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4565952356 + 4565952357.

It is an arithmetic number, because the mean of its divisors is an integer number (4565952357).

Almost surely, 2^9131904713 is an apocalyptic number.

It is an amenable number.

9131904713 is a deficient number, since it is larger than the sum of its proper divisors (1).

9131904713 is an equidigital number, since it uses as much as digits as its factorization.

9131904713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 9131904713 is about 95560.9999581419. Note that the first 4 decimals coincide. The cubic root of 9131904713 is about 2090.1965363128.

The spelling of 9131904713 in words is "nine billion, one hundred thirty-one million, nine hundred four thousand, seven hundred thirteen".