313287361 has 2 divisors, whose sum is σ = 313287362. Its totient is φ = 313287360.

The previous prime is 313287269. The next prime is 313287391. The reversal of 313287361 is 163782313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290054961 + 23232400 = 17031^2 + 4820^2 .

It is a cyclic number.

It is not a de Polignac number, because 313287361 - 2⁹ = 313286849 is a prime.

It is not a weakly prime, because it can be changed into another prime (313287391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156643680 + 156643681.

It is an arithmetic number, because the mean of its divisors is an integer number (156643681).

Almost surely, 2^313287361 is an apocalyptic number.

It is an amenable number.

313287361 is a deficient number, since it is larger than the sum of its proper divisors (1).

313287361 is an equidigital number, since it uses as much as digits as its factorization.

313287361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 313287361 is about 17699.9254518204. The cubic root of 313287361 is about 679.1738532484.

The spelling of 313287361 in words is "three hundred thirteen million, two hundred eighty-seven thousand, three hundred sixty-one".