13782269 has 2 divisors, whose sum is σ = 13782270. Its totient is φ = 13782268.

The previous prime is 13782229. The next prime is 13782281. The reversal of 13782269 is 96228731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9211225 + 4571044 = 3035^2 + 2138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13782269 is a prime.

It is a super-2 number, since 2×13782269² = 379901877576722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13782229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6891134 + 6891135.

It is an arithmetic number, because the mean of its divisors is an integer number (6891135).

Almost surely, 2^13782269 is an apocalyptic number.

It is an amenable number.

13782269 is a deficient number, since it is larger than the sum of its proper divisors (1).

13782269 is an equidigital number, since it uses as much as digits as its factorization.

13782269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 13782269 is about 3712.4478447515. The cubic root of 13782269 is about 239.7582577420.

The spelling of 13782269 in words is "thirteen million, seven hundred eighty-two thousand, two hundred sixty-nine".