12539299 has 4 divisors (see below), whose sum is σ = 12680280. Its totient is φ = 12398320.

The previous prime is 12539279. The next prime is 12539309. The reversal of 12539299 is 99293521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12539299 - 2⁷ = 12539171 is a prime.

It is a super-2 number, since 2×12539299² = 314468038822802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12539249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70357 + ... + 70534.

It is an arithmetic number, because the mean of its divisors is an integer number (3170070).

Almost surely, 2^12539299 is an apocalyptic number.

12539299 is a deficient number, since it is larger than the sum of its proper divisors (140981).

12539299 is an equidigital number, since it uses as much as digits as its factorization.

12539299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140980.

The product of its digits is 43740, while the sum is 40.

The square root of 12539299 is about 3541.0872624097. The cubic root of 12539299 is about 232.3224003102.

The spelling of 12539299 in words is "twelve million, five hundred thirty-nine thousand, two hundred ninety-nine".