13631269 has 4 divisors (see below), whose sum is σ = 13921344. Its totient is φ = 13341196.

The previous prime is 13631257. The next prime is 13631279. The reversal of 13631269 is 96213631.

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: 96213631 = 1087 ⋅88513.

It is a cyclic number.

It is not a de Polignac number, because 13631269 - 2¹¹ = 13629221 is a prime.

It is a super-2 number, since 2×13631269² = 371622989100722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13631269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13631209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144967 + ... + 145060.

It is an arithmetic number, because the mean of its divisors is an integer number (3480336).

Almost surely, 2^13631269 is an apocalyptic number.

It is an amenable number.

13631269 is a deficient number, since it is larger than the sum of its proper divisors (290075).

13631269 is an equidigital number, since it uses as much as digits as its factorization.

13631269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290074.

The product of its digits is 5832, while the sum is 31.

The square root of 13631269 is about 3692.0548479133. The cubic root of 13631269 is about 238.8794347640.

The spelling of 13631269 in words is "thirteen million, six hundred thirty-one thousand, two hundred sixty-nine".