313252813 has 8 divisors (see below), whose sum is σ = 317014776. Its totient is φ = 309504000.

The previous prime is 313252789. The next prime is 313252817. The reversal of 313252813 is 318252313.

It can be written as a sum of positive squares in 4 ways, for example, as 16104169 + 297148644 = 4013^2 + 17238^2 .

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 313252813 - 2¹⁷ = 313121741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313252817) 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, 49645 + ... + 55597.

It is an arithmetic number, because the mean of its divisors is an integer number (39626847).

Almost surely, 2^313252813 is an apocalyptic number.

It is an amenable number.

313252813 is a deficient number, since it is larger than the sum of its proper divisors (3761963).

313252813 is a wasteful number, since it uses less digits than its factorization.

313252813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6575.

The product of its digits is 4320, while the sum is 28.

The square root of 313252813 is about 17698.9494885996. The cubic root of 313252813 is about 679.1488868610.

It can be divided in two parts, 3132 and 52813, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 313252813 in words is "three hundred thirteen million, two hundred fifty-two thousand, eight hundred thirteen".