12372128 has 12 divisors (see below), whose sum is σ = 24357690. Its totient is φ = 6186048.

The previous prime is 12372127. The next prime is 12372133. The reversal of 12372128 is 82127321.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 620944 = 3428^2 + 788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12372097 and 12372106.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193283 + ... + 193346.

Almost surely, 2^12372128 is an apocalyptic number.

It is an amenable number.

12372128 is a deficient number, since it is larger than the sum of its proper divisors (11985562).

12372128 is an equidigital number, since it uses as much as digits as its factorization.

12372128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386639 (or 386631 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 12372128 is about 3517.4035878756. The cubic root of 12372128 is about 231.2853553929.

Adding to 12372128 its reverse (82127321), we get a palindrome (94499449).

The spelling of 12372128 in words is "twelve million, three hundred seventy-two thousand, one hundred twenty-eight".