12129952 has 24 divisors (see below), whose sum is σ = 24173856. Its totient is φ = 5990592.

The previous prime is 12129937. The next prime is 12129989. The reversal of 12129952 is 25992121.

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, 373 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (1007244).

Almost surely, 2^12129952 is an apocalyptic number.

It is an amenable number.

12129952 is a deficient number, since it is larger than the sum of its proper divisors (12043904).

12129952 is an equidigital number, since it uses as much as digits as its factorization.

12129952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660 (or 4652 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The square root of 12129952 is about 3482.8080624691. The cubic root of 12129952 is about 229.7663158983.

The spelling of 12129952 in words is "twelve million, one hundred twenty-nine thousand, nine hundred fifty-two".