12164499 has 20 divisors (see below), whose sum is σ = 18411360. Its totient is φ = 8002800.

The previous prime is 12164497. The next prime is 12164513. The reversal of 12164499 is 99446121.

It is a happy number.

12164499 is a `hidden beast` number, since 1 + 2 + 1 + 644 + 9 + 9 = 666.

It is not a de Polignac number, because 12164499 - 2¹ = 12164497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5449 + ... + 7349.

It is an arithmetic number, because the mean of its divisors is an integer number (920568).

Almost surely, 2^12164499 is an apocalyptic number.

12164499 is a deficient number, since it is larger than the sum of its proper divisors (6246861).

12164499 is an equidigital number, since it uses as much as digits as its factorization.

12164499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1983 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 12164499 is about 3487.7641835422. The cubic root of 12164499 is about 229.9842396258.

It can be divided in two parts, 121 and 64499, that added together give a triangular number (64620 = T₃₅₉).

The spelling of 12164499 in words is "twelve million, one hundred sixty-four thousand, four hundred ninety-nine".