1311392 has 24 divisors (see below), whose sum is σ = 2612736. Its totient is φ = 647872.

The previous prime is 1311383. The next prime is 1311403. The reversal of 1311392 is 2931131.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233 + ... + 3615.

It is an arithmetic number, because the mean of its divisors is an integer number (108864).

2^1311392 is an apocalyptic number.

It is an amenable number.

1311392 is a deficient number, since it is larger than the sum of its proper divisors (1301344).

1311392 is a wasteful number, since it uses less digits than its factorization.

1311392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 492 counting only the distinct ones).

The product of its digits is 162, while the sum is 20.

The square root of 1311392 is about 1145.1602507946. The cubic root of 1311392 is about 109.4571602538.

The spelling of 1311392 in words is "one million, three hundred eleven thousand, three hundred ninety-two".