13529717 has 4 divisors (see below), whose sum is σ = 13560300. Its totient is φ = 13499136.

The previous prime is 13529707. The next prime is 13529723. The reversal of 13529717 is 71792531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71792531 = 2377 ⋅30203.

It can be written as a sum of positive squares in 2 ways, for example, as 6180196 + 7349521 = 2486^2 + 2711^2 .

It is a cyclic number.

It is not a de Polignac number, because 13529717 - 2¹⁰ = 13528693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13529707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14618 + ... + 15515.

It is an arithmetic number, because the mean of its divisors is an integer number (3390075).

Almost surely, 2^13529717 is an apocalyptic number.

It is an amenable number.

13529717 is a deficient number, since it is larger than the sum of its proper divisors (30583).

13529717 is an equidigital number, since it uses as much as digits as its factorization.

13529717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30582.

The product of its digits is 13230, while the sum is 35.

The square root of 13529717 is about 3678.2763626460. The cubic root of 13529717 is about 238.2847438180.

The spelling of 13529717 in words is "thirteen million, five hundred twenty-nine thousand, seven hundred seventeen".