313818945 has 48 divisors (see below), whose sum is σ = 564881856. Its totient is φ = 148579200.

The previous prime is 313818943. The next prime is 313818971. The reversal of 313818945 is 549818313.

It is not a de Polignac number, because 313818945 - 2¹ = 313818943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313818897 and 313818906.

It is not an unprimeable number, because it can be changed into a prime (313818943) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76035 + ... + 80055.

It is an arithmetic number, because the mean of its divisors is an integer number (11768372).

Almost surely, 2^313818945 is an apocalyptic number.

It is an amenable number.

313818945 is a deficient number, since it is larger than the sum of its proper divisors (251062911).

313818945 is a wasteful number, since it uses less digits than its factorization.

313818945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094 (or 4083 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 313818945 is about 17714.9356476393. The cubic root of 313818945 is about 679.5577754750.

The spelling of 313818945 in words is "three hundred thirteen million, eight hundred eighteen thousand, nine hundred forty-five".