13331869 has 4 divisors (see below), whose sum is σ = 13357980. Its totient is φ = 13305760.

The previous prime is 13331867. The next prime is 13331873. The reversal of 13331869 is 96813331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96813331 = 5483 ⋅17657.

It can be written as a sum of positive squares in 2 ways, for example, as 8323225 + 5008644 = 2885^2 + 2238^2 .

It is a cyclic number.

It is not a de Polignac number, because 13331869 - 2¹ = 13331867 is a prime.

It is a super-2 number, since 2×13331869² = 355477462066322, 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 (13331867) 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, 12274 + ... + 13315.

It is an arithmetic number, because the mean of its divisors is an integer number (3339495).

Almost surely, 2^13331869 is an apocalyptic number.

It is an amenable number.

13331869 is a deficient number, since it is larger than the sum of its proper divisors (26111).

13331869 is an equidigital number, since it uses as much as digits as its factorization.

13331869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110.

The product of its digits is 11664, while the sum is 34.

The square root of 13331869 is about 3651.2831990959. The cubic root of 13331869 is about 237.1175391858.

The spelling of 13331869 in words is "thirteen million, three hundred thirty-one thousand, eight hundred sixty-nine".