1311164 has 12 divisors (see below), whose sum is σ = 2308488. Its totient is φ = 651600.

The previous prime is 1311143. The next prime is 1311173. The reversal of 1311164 is 4611131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (192374).

2^1311164 is an apocalyptic number.

It is an amenable number.

1311164 is a deficient number, since it is larger than the sum of its proper divisors (997324).

1311164 is a wasteful number, since it uses less digits than its factorization.

1311164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1994 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 1311164 is about 1145.0606970812. The cubic root of 1311164 is about 109.4508164403.

Adding to 1311164 its reverse (4611131), we get a palindrome (5922295).

The spelling of 1311164 in words is "one million, three hundred eleven thousand, one hundred sixty-four".