331193713 has 2 divisors, whose sum is σ = 331193714. Its totient is φ = 331193712.

The previous prime is 331193651. The next prime is 331193729. The reversal of 331193713 is 317391133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298840369 + 32353344 = 17287^2 + 5688^2 .

It is an emirp because it is prime and its reverse (317391133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331193713 - 2²¹ = 329096561 is a prime.

It is not a weakly prime, because it can be changed into another prime (331193743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165596856 + 165596857.

It is an arithmetic number, because the mean of its divisors is an integer number (165596857).

Almost surely, 2^331193713 is an apocalyptic number.

It is an amenable number.

331193713 is a deficient number, since it is larger than the sum of its proper divisors (1).

331193713 is an equidigital number, since it uses as much as digits as its factorization.

331193713 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 331193713 is about 18198.7283346942. The cubic root of 331193713 is about 691.8745589111.

The spelling of 331193713 in words is "three hundred thirty-one million, one hundred ninety-three thousand, seven hundred thirteen".