313351405 has 8 divisors (see below), whose sum is σ = 381173112. Its totient is φ = 247246848.

The previous prime is 313351399. The next prime is 313351417. The reversal of 313351405 is 504153313.

It can be written as a sum of positive squares in 4 ways, for example, as 47596201 + 265755204 = 6899^2 + 16302^2 .

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 313351405 - 2¹⁷ = 313220333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313351405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428884 + ... + 429613.

It is an arithmetic number, because the mean of its divisors is an integer number (47646639).

Almost surely, 2^313351405 is an apocalyptic number.

It is an amenable number.

313351405 is a deficient number, since it is larger than the sum of its proper divisors (67821707).

313351405 is an equidigital number, since it uses as much as digits as its factorization.

313351405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858575.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 313351405 is about 17701.7345195323. The cubic root of 313351405 is about 679.2201303006.

The spelling of 313351405 in words is "three hundred thirteen million, three hundred fifty-one thousand, four hundred five".