313100393 has 2 divisors, whose sum is σ = 313100394. Its totient is φ = 313100392.

The previous prime is 313100387. The next prime is 313100423. The reversal of 313100393 is 393001313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239878144 + 73222249 = 15488^2 + 8557^2 .

It is a cyclic number.

It is not a de Polignac number, because 313100393 - 2⁴ = 313100377 is a prime.

It is not a weakly prime, because it can be changed into another prime (313100353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156550196 + 156550197.

It is an arithmetic number, because the mean of its divisors is an integer number (156550197).

Almost surely, 2^313100393 is an apocalyptic number.

It is an amenable number.

313100393 is a deficient number, since it is larger than the sum of its proper divisors (1).

313100393 is an equidigital number, since it uses as much as digits as its factorization.

313100393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 23.

The square root of 313100393 is about 17694.6430594121. The cubic root of 313100393 is about 679.0387174144.

The spelling of 313100393 in words is "three hundred thirteen million, one hundred thousand, three hundred ninety-three".