13432539 has 16 divisors (see below), whose sum is σ = 18720000. Its totient is φ = 8556576.

The previous prime is 13432537. The next prime is 13432547. The reversal of 13432539 is 93523431.

It is not a de Polignac number, because 13432539 - 2¹ = 13432537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13432537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8212 + ... + 9710.

It is an arithmetic number, because the mean of its divisors is an integer number (1170000).

Almost surely, 2^13432539 is an apocalyptic number.

13432539 is a deficient number, since it is larger than the sum of its proper divisors (5287461).

13432539 is a wasteful number, since it uses less digits than its factorization.

13432539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634.

The product of its digits is 9720, while the sum is 30.

The square root of 13432539 is about 3665.0428374031. The cubic root of 13432539 is about 237.7128743303.

The spelling of 13432539 in words is "thirteen million, four hundred thirty-two thousand, five hundred thirty-nine".