912491113 has 2 divisors, whose sum is σ = 912491114. Its totient is φ = 912491112.

The previous prime is 912491087. The next prime is 912491117. The reversal of 912491113 is 311194219.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889709584 + 22781529 = 29828^2 + 4773^2 .

It is a cyclic number.

It is not a de Polignac number, because 912491113 - 2⁵ = 912491081 is a prime.

It is not a weakly prime, because it can be changed into another prime (912491117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456245556 + 456245557.

It is an arithmetic number, because the mean of its divisors is an integer number (456245557).

Almost surely, 2^912491113 is an apocalyptic number.

It is an amenable number.

912491113 is a deficient number, since it is larger than the sum of its proper divisors (1).

912491113 is an equidigital number, since it uses as much as digits as its factorization.

912491113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 31.

The square root of 912491113 is about 30207.4678349576. The cubic root of 912491113 is about 969.9355584780.

The spelling of 912491113 in words is "nine hundred twelve million, four hundred ninety-one thousand, one hundred thirteen".