13445269 has 4 divisors (see below), whose sum is σ = 13452640. Its totient is φ = 13437900.

The previous prime is 13445251. The next prime is 13445279. The reversal of 13445269 is 96254431.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13445269 - 2⁹ = 13444757 is a prime.

It is a super-2 number, since 2×13445269² = 361550516964722, 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 (13445219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1294 + ... + 5344.

It is an arithmetic number, because the mean of its divisors is an integer number (3363160).

Almost surely, 2^13445269 is an apocalyptic number.

It is an amenable number.

13445269 is a deficient number, since it is larger than the sum of its proper divisors (7371).

13445269 is an equidigital number, since it uses as much as digits as its factorization.

13445269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370.

The product of its digits is 25920, while the sum is 34.

The square root of 13445269 is about 3666.7791043367. The cubic root of 13445269 is about 237.7879440162.

It can be divided in two parts, 13445 and 269, that multiplied together give a triangular number (3616705 = T₂₆₈₉).

The spelling of 13445269 in words is "thirteen million, four hundred forty-five thousand, two hundred sixty-nine".