12545039 has 6 divisors (see below), whose sum is σ = 13584456. Its totient is φ = 11579880.

The previous prime is 12544999. The next prime is 12545041. The reversal of 12545039 is 93054521.

12545039 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12545039 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 (12545059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36947 + ... + 37284.

It is an arithmetic number, because the mean of its divisors is an integer number (2264076).

Almost surely, 2^12545039 is an apocalyptic number.

12545039 is a deficient number, since it is larger than the sum of its proper divisors (1039417).

12545039 is an equidigital number, since it uses as much as digits as its factorization.

12545039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74257 (or 74244 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 12545039 is about 3541.8976552125. The cubic root of 12545039 is about 232.3578442679.

The spelling of 12545039 in words is "twelve million, five hundred forty-five thousand, thirty-nine".