12372129 has 48 divisors (see below), whose sum is σ = 23067520. Its totient is φ = 6415200.

The previous prime is 12372127. The next prime is 12372133. The reversal of 12372129 is 92127321.

It is not a de Polignac number, because 12372129 - 2¹ = 12372127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12372121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22599 + ... + 23139.

Almost surely, 2^12372129 is an apocalyptic number.

It is an amenable number.

12372129 is a deficient number, since it is larger than the sum of its proper divisors (10695391).

12372129 is a wasteful number, since it uses less digits than its factorization.

12372129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 562 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 12372129 is about 3517.4037300259. The cubic root of 12372129 is about 231.2853616243.

The spelling of 12372129 in words is "twelve million, three hundred seventy-two thousand, one hundred twenty-nine".