1531164 has 12 divisors (see below), whose sum is σ = 3572744. Its totient is φ = 510384.

The previous prime is 1531157. The next prime is 1531181. The reversal of 1531164 is 4611351.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1531164.

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, 63787 + ... + 63810.

2^1531164 is an apocalyptic number.

It is an amenable number.

1531164 is an abundant number, since it is smaller than the sum of its proper divisors (2041580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1531164 is a wasteful number, since it uses less digits than its factorization.

1531164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127604 (or 127602 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 1531164 is about 1237.4021173410. The cubic root of 1531164 is about 115.2587494514.

The spelling of 1531164 in words is "one million, five hundred thirty-one thousand, one hundred sixty-four".