12188164 has 6 divisors (see below), whose sum is σ = 21329294. Its totient is φ = 6094080.

The previous prime is 12188159. The next prime is 12188173. The reversal of 12188164 is 46188121.

12188164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11957764 + 230400 = 3458^2 + 480^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1523517 + ... + 1523524.

Almost surely, 2^12188164 is an apocalyptic number.

It is an amenable number.

12188164 is a deficient number, since it is larger than the sum of its proper divisors (9141130).

12188164 is a wasteful number, since it uses less digits than its factorization.

12188164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047045 (or 3047043 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 12188164 is about 3491.1551097022. The cubic root of 12188164 is about 230.1332812888.

It can be divided in two parts, 1218816 and 4, that multiplied together give a square (4875264 = 2208²).

The spelling of 12188164 in words is "twelve million, one hundred eighty-eight thousand, one hundred sixty-four".