12149725 has 12 divisors (see below), whose sum is σ = 17218144. Its totient is φ = 8331120.

The previous prime is 12149723. The next prime is 12149741. The reversal of 12149725 is 52794121.

It is not a de Polignac number, because 12149725 - 2¹ = 12149723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12149723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34539 + ... + 34888.

Almost surely, 2^12149725 is an apocalyptic number.

It is an amenable number.

12149725 is a deficient number, since it is larger than the sum of its proper divisors (5068419).

12149725 is an equidigital number, since it uses as much as digits as its factorization.

12149725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69444 (or 69439 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 12149725 is about 3485.6455643109. The cubic root of 12149725 is about 229.8910952598.

The spelling of 12149725 in words is "twelve million, one hundred forty-nine thousand, seven hundred twenty-five".