7215164 has 12 divisors (see below), whose sum is σ = 13774488. Its totient is φ = 3279600.

The previous prime is 7215133. The next prime is 7215167. The reversal of 7215164 is 4615127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81947 + ... + 82034.

It is an arithmetic number, because the mean of its divisors is an integer number (1147874).

Almost surely, 2^7215164 is an apocalyptic number.

It is an amenable number.

7215164 is a deficient number, since it is larger than the sum of its proper divisors (6559324).

7215164 is a wasteful number, since it uses less digits than its factorization.

7215164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163996 (or 163994 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 7215164 is about 2686.1057313516. The cubic root of 7215164 is about 193.2333437242.

It can be divided in two parts, 721 and 5164, that added together give a palindrome (5885).

The spelling of 7215164 in words is "seven million, two hundred fifteen thousand, one hundred sixty-four".