13539235 has 4 divisors (see below), whose sum is σ = 16247088. Its totient is φ = 10831384.

The previous prime is 13539223. The next prime is 13539241. The reversal of 13539235 is 53293531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53293531 = 263 ⋅202637.

It is a cyclic number.

It is not a de Polignac number, because 13539235 - 2¹³ = 13531043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13539197 and 13539206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353919 + ... + 1353928.

It is an arithmetic number, because the mean of its divisors is an integer number (4061772).

Almost surely, 2^13539235 is an apocalyptic number.

13539235 is a deficient number, since it is larger than the sum of its proper divisors (2707853).

13539235 is an equidigital number, since it uses as much as digits as its factorization.

13539235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707852.

The product of its digits is 12150, while the sum is 31.

The square root of 13539235 is about 3679.5699476977. The cubic root of 13539235 is about 238.3406075773.

The spelling of 13539235 in words is "thirteen million, five hundred thirty-nine thousand, two hundred thirty-five".