1311390874 has 16 divisors (see below), whose sum is σ = 2005974720. Its totient is φ = 642836320.

The previous prime is 1311390859. The next prime is 1311390929. The reversal of 1311390874 is 4780931131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379 + ... + 51214.

It is an arithmetic number, because the mean of its divisors is an integer number (125373420).

Almost surely, 2^1311390874 is an apocalyptic number.

1311390874 is a deficient number, since it is larger than the sum of its proper divisors (694583846).

1311390874 is a wasteful number, since it uses less digits than its factorization.

1311390874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51845.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1311390874 is about 36213.1312371631. The cubic root of 1311390874 is about 1094.5712892612.

The spelling of 1311390874 in words is "one billion, three hundred eleven million, three hundred ninety thousand, eight hundred seventy-four".