313011866 has 4 divisors (see below), whose sum is σ = 469517802. Its totient is φ = 156505932.

The previous prime is 313011857. The next prime is 313011883. The reversal of 313011866 is 668110313.

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., 310499641 + 2512225 = 17621^2 + 1585^2 .

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, 78252965 + ... + 78252968.

Almost surely, 2^313011866 is an apocalyptic number.

313011866 is a deficient number, since it is larger than the sum of its proper divisors (156505936).

313011866 is a wasteful number, since it uses less digits than its factorization.

313011866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156505935.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 313011866 is about 17692.1413627633. The cubic root of 313011866 is about 678.9747135270.

The spelling of 313011866 in words is "three hundred thirteen million, eleven thousand, eight hundred sixty-six".