12143925 has 36 divisors (see below), whose sum is σ = 22568000. Its totient is φ = 6473520.

The previous prime is 12143891. The next prime is 12143927. The reversal of 12143925 is 52934121.

12143925 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12143925 - 2¹⁸ = 11881781 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5076 + ... + 7074.

Almost surely, 2^12143925 is an apocalyptic number.

12143925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12143925 is a deficient number, since it is larger than the sum of its proper divisors (10424075).

12143925 is an equidigital number, since it uses as much as digits as its factorization.

12143925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 2007 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 12143925 is about 3484.8134813789. The cubic root of 12143925 is about 229.8545078588.

The spelling of 12143925 in words is "twelve million, one hundred forty-three thousand, nine hundred twenty-five".