12146664 has 32 divisors (see below), whose sum is σ = 30673440. Its totient is φ = 4008000.

The previous prime is 12146647. The next prime is 12146669. The reversal of 12146664 is 46664121.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12146669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82 + ... + 4929.

It is an arithmetic number, because the mean of its divisors is an integer number (958545).

Almost surely, 2^12146664 is an apocalyptic number.

It is an amenable number.

12146664 is an abundant number, since it is smaller than the sum of its proper divisors (18526776).

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

12146664 is a wasteful number, since it uses less digits than its factorization.

12146664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121 (or 5117 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 12146664 is about 3485.2064501260. The cubic root of 12146664 is about 229.8717873948.

The spelling of 12146664 in words is "twelve million, one hundred forty-six thousand, six hundred sixty-four".