313254257 has 8 divisors (see below), whose sum is σ = 331857000. Its totient is φ = 294671104.

The previous prime is 313254251. The next prime is 313254281. The reversal of 313254257 is 752452313.

It can be written as a sum of positive squares in 4 ways, for example, as 264030001 + 49224256 = 16249^2 + 7016^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313254257 - 2¹⁶ = 313188721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313254251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39719 + ... + 46947.

It is an arithmetic number, because the mean of its divisors is an integer number (41482125).

Almost surely, 2^313254257 is an apocalyptic number.

It is an amenable number.

313254257 is a deficient number, since it is larger than the sum of its proper divisors (18602743).

313254257 is a wasteful number, since it uses less digits than its factorization.

313254257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9795.

The product of its digits is 25200, while the sum is 32.

The square root of 313254257 is about 17698.9902819342. The cubic root of 313254257 is about 679.1499304159.

The spelling of 313254257 in words is "three hundred thirteen million, two hundred fifty-four thousand, two hundred fifty-seven".