12164690 has 32 divisors (see below), whose sum is σ = 23379840. Its totient is φ = 4541184.

The previous prime is 12164683. The next prime is 12164699. The reversal of 12164690 is 9646121.

It is a super-2 number, since 2×12164690² = 295959365592200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12164699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27491 + ... + 27929.

It is an arithmetic number, because the mean of its divisors is an integer number (730620).

Almost surely, 2^12164690 is an apocalyptic number.

12164690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12164690 is a deficient number, since it is larger than the sum of its proper divisors (11215150).

12164690 is a wasteful number, since it uses less digits than its factorization.

12164690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12164690 is about 3487.7915648731. The cubic root of 12164690 is about 229.9854433131.

Subtracting from 12164690 its reverse (9646121), we obtain a square (2518569 = 1587²).

The spelling of 12164690 in words is "twelve million, one hundred sixty-four thousand, six hundred ninety".