13611369 has 4 divisors (see below), whose sum is σ = 18148496. Its totient is φ = 9074244.

The previous prime is 13611343. The next prime is 13611371. The reversal of 13611369 is 96311631.

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.

It is not a de Polignac number, because 13611369 - 2⁵ = 13611337 is a prime.

It is a super-2 number, since 2×13611369² = 370538732108322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13611319) 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, 2268559 + ... + 2268564.

It is an arithmetic number, because the mean of its divisors is an integer number (4537124).

Almost surely, 2^13611369 is an apocalyptic number.

It is an amenable number.

13611369 is a deficient number, since it is larger than the sum of its proper divisors (4537127).

13611369 is an equidigital number, since it uses as much as digits as its factorization.

13611369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537126.

The product of its digits is 2916, while the sum is 30.

The square root of 13611369 is about 3689.3588873949. The cubic root of 13611369 is about 238.7631331463.

The spelling of 13611369 in words is "thirteen million, six hundred eleven thousand, three hundred sixty-nine".