12149012 has 12 divisors (see below), whose sum is σ = 21285600. Its totient is φ = 6067416.

The previous prime is 12149009. The next prime is 12149021. The reversal of 12149012 is 21094121.

It is a super-2 number, since 2×12149012² = 295196985152288, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4739 + ... + 6837.

It is an arithmetic number, because the mean of its divisors is an integer number (1773800).

Almost surely, 2^12149012 is an apocalyptic number.

It is an amenable number.

12149012 is a deficient number, since it is larger than the sum of its proper divisors (9136588).

12149012 is a wasteful number, since it uses less digits than its factorization.

12149012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550 (or 3548 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12149012 is about 3485.5432862037. The cubic root of 12149012 is about 229.8865981605.

The spelling of 12149012 in words is "twelve million, one hundred forty-nine thousand, twelve".