313609645 has 8 divisors (see below), whose sum is σ = 376800480. Its totient is φ = 250575120.

The previous prime is 313609643. The next prime is 313609651. The reversal of 313609645 is 546906313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313609645 - 2¹ = 313609643 is a prime.

It is a super-5 number, since 5×313609645⁵ (a number of 44 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313609643) 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, 34615 + ... + 42724.

It is an arithmetic number, because the mean of its divisors is an integer number (47100060).

Almost surely, 2^313609645 is an apocalyptic number.

It is an amenable number.

313609645 is a deficient number, since it is larger than the sum of its proper divisors (63190835).

313609645 is an equidigital number, since it uses as much as digits as its factorization.

313609645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78155.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 313609645 is about 17709.0272177779. The cubic root of 313609645 is about 679.4066659721.

The spelling of 313609645 in words is "three hundred thirteen million, six hundred nine thousand, six hundred forty-five".