313406605 has 4 divisors (see below), whose sum is σ = 376087932. Its totient is φ = 250725280.

The previous prime is 313406603. The next prime is 313406609. The reversal of 313406605 is 506604313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506604313 = 1759 ⋅288007.

It can be written as a sum of positive squares in 2 ways, for example, as 38576521 + 274830084 = 6211^2 + 16578^2 .

It is not a de Polignac number, because 313406605 - 2¹ = 313406603 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 (313406603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31340656 + ... + 31340665.

It is an arithmetic number, because the mean of its divisors is an integer number (94021983).

Almost surely, 2^313406605 is an apocalyptic number.

It is an amenable number.

313406605 is a deficient number, since it is larger than the sum of its proper divisors (62681327).

313406605 is an equidigital number, since it uses as much as digits as its factorization.

313406605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62681326.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 313406605 is about 17703.2936201149. The cubic root of 313406605 is about 679.2600117768.

The spelling of 313406605 in words is "three hundred thirteen million, four hundred six thousand, six hundred five".