12739025 has 24 divisors (see below), whose sum is σ = 17915520. Its totient is φ = 8907840.

The previous prime is 12738997. The next prime is 12739031. The reversal of 12739025 is 52093721.

It is not a de Polignac number, because 12739025 - 2¹⁰ = 12738001 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5144 + ... + 7206.

It is an arithmetic number, because the mean of its divisors is an integer number (746480).

Almost surely, 2^12739025 is an apocalyptic number.

It is an amenable number.

12739025 is a deficient number, since it is larger than the sum of its proper divisors (5176495).

12739025 is a wasteful number, since it uses less digits than its factorization.

12739025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 12739025 is about 3569.1770760219. The cubic root of 12739025 is about 233.5493860541.

The spelling of 12739025 in words is "twelve million, seven hundred thirty-nine thousand, twenty-five".