13539655 has 4 divisors (see below), whose sum is σ = 16247592. Its totient is φ = 10831720.

The previous prime is 13539641. The next prime is 13539661. The reversal of 13539655 is 55693531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55693531 = 1471 ⋅37861.

It is not a de Polignac number, because 13539655 - 2⁵ = 13539623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353961 + ... + 1353970.

It is an arithmetic number, because the mean of its divisors is an integer number (4061898).

Almost surely, 2^13539655 is an apocalyptic number.

13539655 is a deficient number, since it is larger than the sum of its proper divisors (2707937).

13539655 is an equidigital number, since it uses as much as digits as its factorization.

13539655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707936.

The product of its digits is 60750, while the sum is 37.

The square root of 13539655 is about 3679.6270191420. The cubic root of 13539655 is about 238.3430720696.

The spelling of 13539655 in words is "thirteen million, five hundred thirty-nine thousand, six hundred fifty-five".