13269257 has 4 divisors (see below), whose sum is σ = 13278336. Its totient is φ = 13260180.

The previous prime is 13269247. The next prime is 13269259. The reversal of 13269257 is 75296231.

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 13269257 - 2⁸ = 13269001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13269259) 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, 1793 + ... + 5454.

It is an arithmetic number, because the mean of its divisors is an integer number (3319584).

Almost surely, 2^13269257 is an apocalyptic number.

It is an amenable number.

13269257 is a deficient number, since it is larger than the sum of its proper divisors (9079).

13269257 is an equidigital number, since it uses as much as digits as its factorization.

13269257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078.

The product of its digits is 22680, while the sum is 35.

The square root of 13269257 is about 3642.6991366293. The cubic root of 13269257 is about 236.7457557091.

The spelling of 13269257 in words is "thirteen million, two hundred sixty-nine thousand, two hundred fifty-seven".