913133317 has 2 divisors, whose sum is σ = 913133318. Its totient is φ = 913133316.

The previous prime is 913133269. The next prime is 913133363. The reversal of 913133317 is 713331319.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 864007236 + 49126081 = 29394^2 + 7009^2 .

It is an emirp because it is prime and its reverse (713331319) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-913133317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (913133387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456566658 + 456566659.

It is an arithmetic number, because the mean of its divisors is an integer number (456566659).

Almost surely, 2^913133317 is an apocalyptic number.

It is an amenable number.

913133317 is a deficient number, since it is larger than the sum of its proper divisors (1).

913133317 is an equidigital number, since it uses as much as digits as its factorization.

913133317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5103, while the sum is 31.

The square root of 913133317 is about 30218.0958533128. The cubic root of 913133317 is about 970.1630494324.

The spelling of 913133317 in words is "nine hundred thirteen million, one hundred thirty-three thousand, three hundred seventeen".