13812369 has 4 divisors (see below), whose sum is σ = 18416496. Its totient is φ = 9208244.

The previous prime is 13812361. The next prime is 13812419. The reversal of 13812369 is 96321831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96321831 = 3 ⋅32107277.

It is a cyclic number.

It is not a de Polignac number, because 13812369 - 2³ = 13812361 is a prime.

It is a super-2 number, since 2×13812369² = 381563074784322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13812361) 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, 2302059 + ... + 2302064.

It is an arithmetic number, because the mean of its divisors is an integer number (4604124).

Almost surely, 2^13812369 is an apocalyptic number.

It is an amenable number.

13812369 is a deficient number, since it is larger than the sum of its proper divisors (4604127).

13812369 is an equidigital number, since it uses as much as digits as its factorization.

13812369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604126.

The product of its digits is 7776, while the sum is 33.

The square root of 13812369 is about 3716.4995627606. The cubic root of 13812369 is about 239.9326720863.

The spelling of 13812369 in words is "thirteen million, eight hundred twelve thousand, three hundred sixty-nine".