12661452 has 18 divisors (see below), whose sum is σ = 32005428. Its totient is φ = 4220472.

The previous prime is 12661433. The next prime is 12661469. The reversal of 12661452 is 25416621.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175818 + ... + 175889.

Almost surely, 2^12661452 is an apocalyptic number.

12661452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12661452 is an abundant number, since it is smaller than the sum of its proper divisors (19343976).

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

12661452 is a wasteful number, since it uses less digits than its factorization.

12661452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351717 (or 351712 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 12661452 is about 3558.2934111734. The cubic root of 12661452 is about 233.0743621133.

The spelling of 12661452 in words is "twelve million, six hundred sixty-one thousand, four hundred fifty-two".