13565045 has 16 divisors (see below), whose sum is σ = 17642352. Its totient is φ = 9953280.

The previous prime is 13565033. The next prime is 13565059. The reversal of 13565045 is 54056531.

It can be written as a sum of positive squares in 8 ways, for example, as 2582449 + 10982596 = 1607^2 + 3314^2 .

It is not a de Polignac number, because 13565045 - 2⁶ = 13564981 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13564999 and 13565017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11189 + ... + 12341.

It is an arithmetic number, because the mean of its divisors is an integer number (1102647).

Almost surely, 2^13565045 is an apocalyptic number.

It is an amenable number.

13565045 is a deficient number, since it is larger than the sum of its proper divisors (4077307).

13565045 is a wasteful number, since it uses less digits than its factorization.

13565045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 13565045 is about 3683.0754811706. The cubic root of 13565045 is about 238.4919619259.

The spelling of 13565045 in words is "thirteen million, five hundred sixty-five thousand, forty-five".