12228375 has 16 divisors (see below), whose sum is σ = 20348640. Its totient is φ = 6521600.

The previous prime is 12228367. The next prime is 12228397. The reversal of 12228375 is 57382221.

It is not a de Polignac number, because 12228375 - 2³ = 12228367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15930 + ... + 16679.

It is an arithmetic number, because the mean of its divisors is an integer number (1271790).

Almost surely, 2^12228375 is an apocalyptic number.

12228375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12228375 is a deficient number, since it is larger than the sum of its proper divisors (8120265).

12228375 is an equidigital number, since it uses as much as digits as its factorization.

12228375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32627 (or 32617 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 12228375 is about 3496.9093496972. The cubic root of 12228375 is about 230.3860875147.

The spelling of 12228375 in words is "twelve million, two hundred twenty-eight thousand, three hundred seventy-five".