313656005 has 16 divisors (see below), whose sum is σ = 409361904. Its totient is φ = 229324800.

The previous prime is 313655989. The next prime is 313656017. The reversal of 313656005 is 500656313.

It can be written as a sum of positive squares in 8 ways, for example, as 4669921 + 308986084 = 2161^2 + 17578^2 .

It is not a de Polignac number, because 313656005 - 2⁴ = 313655989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17324 + ... + 30453.

It is an arithmetic number, because the mean of its divisors is an integer number (25585119).

Almost surely, 2^313656005 is an apocalyptic number.

It is an amenable number.

313656005 is a deficient number, since it is larger than the sum of its proper divisors (95705899).

313656005 is a wasteful number, since it uses less digits than its factorization.

313656005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47896.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 313656005 is about 17710.3361063533. The cubic root of 313656005 is about 679.4401425585.

The spelling of 313656005 in words is "three hundred thirteen million, six hundred fifty-six thousand, five".