313960289 has 2 divisors, whose sum is σ = 313960290. Its totient is φ = 313960288.

The previous prime is 313960259. The next prime is 313960307. The reversal of 313960289 is 982069313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225750625 + 88209664 = 15025^2 + 9392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313960289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313960249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156980144 + 156980145.

It is an arithmetic number, because the mean of its divisors is an integer number (156980145).

Almost surely, 2^313960289 is an apocalyptic number.

It is an amenable number.

313960289 is a deficient number, since it is larger than the sum of its proper divisors (1).

313960289 is an equidigital number, since it uses as much as digits as its factorization.

313960289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 313960289 is about 17718.9246005507. The cubic root of 313960289 is about 679.6597843975.

The spelling of 313960289 in words is "three hundred thirteen million, nine hundred sixty thousand, two hundred eighty-nine".