13045869 has 12 divisors (see below), whose sum is σ = 18915676. Its totient is φ = 8664192.

The previous prime is 13045861. The next prime is 13045871. The reversal of 13045869 is 96854031.

13045869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8037225 + 5008644 = 2835^2 + 2238^2 .

It is not a de Polignac number, because 13045869 - 2³ = 13045861 is a prime.

It is a super-2 number, since 2×13045869² = 340389395930322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124 + ... + 5109.

Almost surely, 2^13045869 is an apocalyptic number.

It is an amenable number.

13045869 is a deficient number, since it is larger than the sum of its proper divisors (5869807).

13045869 is a wasteful number, since it uses less digits than its factorization.

13045869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5516 (or 5513 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 13045869 is about 3611.9065602532. The cubic root of 13045869 is about 235.4096912579.

The spelling of 13045869 in words is "thirteen million, forty-five thousand, eight hundred sixty-nine".