12149512 has 32 divisors (see below), whose sum is σ = 24357600. Its totient is φ = 5664384.

The previous prime is 12149507. The next prime is 12149513. The reversal of 12149512 is 21594121.

It is a happy number.

It is a super-2 number, since 2×12149512² = 295221283676288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12149513) 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, 9588 + ... + 10780.

It is an arithmetic number, because the mean of its divisors is an integer number (761175).

Almost surely, 2^12149512 is an apocalyptic number.

It is an amenable number.

12149512 is an abundant number, since it is smaller than the sum of its proper divisors (12208088).

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

12149512 is a wasteful number, since it uses less digits than its factorization.

12149512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1281 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 12149512 is about 3485.6150102959. The cubic root of 12149512 is about 229.8897518250.

The spelling of 12149512 in words is "twelve million, one hundred forty-nine thousand, five hundred twelve".