13539075 has 24 divisors (see below), whose sum is σ = 24421056. Its totient is φ = 6564000.

The previous prime is 13539073. The next prime is 13539079. The reversal of 13539075 is 57093531.

13539075 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13539075 - 2¹ = 13539073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13539073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7381 + ... + 9030.

It is an arithmetic number, because the mean of its divisors is an integer number (1017544).

Almost surely, 2^13539075 is an apocalyptic number.

13539075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13539075 is a deficient number, since it is larger than the sum of its proper divisors (10881981).

13539075 is a wasteful number, since it uses less digits than its factorization.

13539075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16435 (or 16430 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 13539075 is about 3679.5482059622. The cubic root of 13539075 is about 238.3396687097.

The spelling of 13539075 in words is "thirteen million, five hundred thirty-nine thousand, seventy-five".