13539147 has 8 divisors (see below), whose sum is σ = 18096960. Its totient is φ = 9003720.

The previous prime is 13539137. The next prime is 13539161. The reversal of 13539147 is 74193531.

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

It is not a de Polignac number, because 13539147 - 2⁴ = 13539131 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13539137) 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, 4129 + ... + 6642.

It is an arithmetic number, because the mean of its divisors is an integer number (2262120).

Almost surely, 2^13539147 is an apocalyptic number.

13539147 is a deficient number, since it is larger than the sum of its proper divisors (4557813).

13539147 is a wasteful number, since it uses less digits than its factorization.

13539147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11193.

The product of its digits is 11340, while the sum is 33.

The square root of 13539147 is about 3679.5579897591. The cubic root of 13539147 is about 238.3400912011.

The spelling of 13539147 in words is "thirteen million, five hundred thirty-nine thousand, one hundred forty-seven".