12539307 has 8 divisors (see below), whose sum is σ = 18239040. Its totient is φ = 7599560.

The previous prime is 12539279. The next prime is 12539309. The reversal of 12539307 is 70393521.

12539307 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12539307 - 2⁶ = 12539243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12539309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189957 + ... + 190022.

It is an arithmetic number, because the mean of its divisors is an integer number (2279880).

Almost surely, 2^12539307 is an apocalyptic number.

12539307 is a deficient number, since it is larger than the sum of its proper divisors (5699733).

12539307 is a wasteful number, since it uses less digits than its factorization.

12539307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379993.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 12539307 is about 3541.0883920061. The cubic root of 12539307 is about 232.3224497169.

The spelling of 12539307 in words is "twelve million, five hundred thirty-nine thousand, three hundred seven".