12429725 has 36 divisors (see below), whose sum is σ = 19394592. Its totient is φ = 7735200.

The previous prime is 12429691. The next prime is 12429727. The reversal of 12429725 is 52792421.

12429725 = T₂₈₆ + T₂₈₇ + ... + T₄₆₀.

It is not a de Polignac number, because 12429725 - 2¹² = 12425629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12429691 and 12429700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12429727) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20882 + ... + 21468.

Almost surely, 2^12429725 is an apocalyptic number.

It is an amenable number.

12429725 is a deficient number, since it is larger than the sum of its proper divisors (6964867).

12429725 is a wasteful number, since it uses less digits than its factorization.

12429725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 610 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 12429725 is about 3525.5815123182. The cubic root of 12429725 is about 231.6437072175.

The spelling of 12429725 in words is "twelve million, four hundred twenty-nine thousand, seven hundred twenty-five".