13248769 has 4 divisors (see below), whose sum is σ = 13270996. Its totient is φ = 13226544.

The previous prime is 13248751. The next prime is 13248779. The reversal of 13248769 is 96784231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96784231 = 41 ⋅2360591.

It can be written as a sum of positive squares in 2 ways, for example, as 6822544 + 6426225 = 2612^2 + 2535^2 .

It is a cyclic number.

It is not a de Polignac number, because 13248769 - 2¹¹ = 13246721 is a prime.

It is a super-2 number, since 2×13248769² = 351059760030722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13248779) 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, 10194 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (3317749).

Almost surely, 2^13248769 is an apocalyptic number.

It is an amenable number.

13248769 is a deficient number, since it is larger than the sum of its proper divisors (22227).

13248769 is an equidigital number, since it uses as much as digits as its factorization.

13248769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22226.

The product of its digits is 72576, while the sum is 40.

The square root of 13248769 is about 3639.8858498585. The cubic root of 13248769 is about 236.6238462060.

The spelling of 13248769 in words is "thirteen million, two hundred forty-eight thousand, seven hundred sixty-nine".