13061869 has 4 divisors (see below), whose sum is σ = 13276060. Its totient is φ = 12847680.

The previous prime is 13061857. The next prime is 13061891. The reversal of 13061869 is 96816031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 316969 + 12744900 = 563^2 + 3570^2 .

It is a cyclic number.

It is not a de Polignac number, because 13061869 - 2⁵ = 13061837 is a prime.

It is a super-2 number, since 2×13061869² = 341224843546322, 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 (13061849) 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, 107004 + ... + 107125.

It is an arithmetic number, because the mean of its divisors is an integer number (3319015).

Almost surely, 2^13061869 is an apocalyptic number.

It is an amenable number.

13061869 is a deficient number, since it is larger than the sum of its proper divisors (214191).

13061869 is an equidigital number, since it uses as much as digits as its factorization.

13061869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214190.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13061869 is about 3614.1207782807. The cubic root of 13061869 is about 235.5058907084.

The spelling of 13061869 in words is "thirteen million, sixty-one thousand, eight hundred sixty-nine".