12765039 has 12 divisors (see below), whose sum is σ = 19799064. Its totient is φ = 7294224.

The previous prime is 12765031. The next prime is 12765061. The reversal of 12765039 is 93056721.

It is not a de Polignac number, because 12765039 - 2³ = 12765031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12765031) 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, 43272 + ... + 43565.

It is an arithmetic number, because the mean of its divisors is an integer number (1649922).

Almost surely, 2^12765039 is an apocalyptic number.

12765039 is a deficient number, since it is larger than the sum of its proper divisors (7034025).

12765039 is an equidigital number, since it uses as much as digits as its factorization.

12765039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86854 (or 86847 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 12765039 is about 3572.8194748686. The cubic root of 12765039 is about 233.7082528131.

The spelling of 12765039 in words is "twelve million, seven hundred sixty-five thousand, thirty-nine".