13038545 has 16 divisors (see below), whose sum is σ = 17433360. Its totient is φ = 9295104.

The previous prime is 13038523. The next prime is 13038547. The reversal of 13038545 is 54583031.

It can be written as a sum of positive squares in 8 ways, for example, as 414736 + 12623809 = 644^2 + 3553^2 .

It is not a de Polignac number, because 13038545 - 2⁶ = 13038481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (13038547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1574 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (1089585).

Almost surely, 2^13038545 is an apocalyptic number.

It is an amenable number.

13038545 is a deficient number, since it is larger than the sum of its proper divisors (4394815).

13038545 is a wasteful number, since it uses less digits than its factorization.

13038545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 13038545 is about 3610.8925489413. The cubic root of 13038545 is about 235.3656297156.

The spelling of 13038545 in words is "thirteen million, thirty-eight thousand, five hundred forty-five".