313975405 has 4 divisors (see below), whose sum is σ = 376770492. Its totient is φ = 251180320.

The previous prime is 313975393. The next prime is 313975411. The reversal of 313975405 is 504579313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96884649 + 217090756 = 9843^2 + 14734^2 .

It is not a de Polignac number, because 313975405 - 2²¹ = 311878253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31397536 + ... + 31397545.

It is an arithmetic number, because the mean of its divisors is an integer number (94192623).

Almost surely, 2^313975405 is an apocalyptic number.

It is an amenable number.

313975405 is a deficient number, since it is larger than the sum of its proper divisors (62795087).

313975405 is an equidigital number, since it uses as much as digits as its factorization.

313975405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62795086.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 313975405 is about 17719.3511450053. The cubic root of 313975405 is about 679.6706919048.

The spelling of 313975405 in words is "three hundred thirteen million, nine hundred seventy-five thousand, four hundred five".