12129325 has 12 divisors (see below), whose sum is σ = 16197748. Its totient is φ = 8956800.

The previous prime is 12129287. The next prime is 12129343. The reversal of 12129325 is 52392121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 281961 + 11847364 = 531^2 + 3442^2 .

It is not a de Polignac number, because 12129325 - 2⁷ = 12129197 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12129325.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 18336 + ... + 18985.

Almost surely, 2^12129325 is an apocalyptic number.

It is an amenable number.

12129325 is a deficient number, since it is larger than the sum of its proper divisors (4068423).

12129325 is a wasteful number, since it uses less digits than its factorization.

12129325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37344 (or 37339 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 12129325 is about 3482.7180477323. The cubic root of 12129325 is about 229.7623569389.

The spelling of 12129325 in words is "twelve million, one hundred twenty-nine thousand, three hundred twenty-five".