12539716 has 24 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 5188512.

The previous prime is 12539711. The next prime is 12539729. The reversal of 12539716 is 61793521.

12539716 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12539711) 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, 6910 + ... + 8533.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 2^12539716 is an apocalyptic number.

It is an amenable number.

12539716 is an abundant number, since it is smaller than the sum of its proper divisors (13406204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12539716 is a wasteful number, since it uses less digits than its factorization.

12539716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15483 (or 15481 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 12539716 is about 3541.1461421410. The cubic root of 12539716 is about 232.3249756101.

The spelling of 12539716 in words is "twelve million, five hundred thirty-nine thousand, seven hundred sixteen".