313045618 has 4 divisors (see below), whose sum is σ = 469568430. Its totient is φ = 156522808.

The previous prime is 313045589. The next prime is 313045627. The reversal of 313045618 is 816540313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 279324369 + 33721249 = 16713^2 + 5807^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 313045618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78261403 + ... + 78261406.

Almost surely, 2^313045618 is an apocalyptic number.

313045618 is a deficient number, since it is larger than the sum of its proper divisors (156522812).

313045618 is a wasteful number, since it uses less digits than its factorization.

313045618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156522811.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 313045618 is about 17693.0952068879. The cubic root of 313045618 is about 678.9991172140. Note that the first 3 decimals are identical.

The spelling of 313045618 in words is "three hundred thirteen million, forty-five thousand, six hundred eighteen".