13299229 has 2 divisors, whose sum is σ = 13299230. Its totient is φ = 13299228.

The previous prime is 13299227. The next prime is 13299239. The reversal of 13299229 is 92299231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12766329 + 532900 = 3573^2 + 730^2 .

It is an emirp because it is prime and its reverse (92299231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13299229 - 2¹ = 13299227 is a prime.

Together with 13299227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13299227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6649614 + 6649615.

It is an arithmetic number, because the mean of its divisors is an integer number (6649615).

Almost surely, 2^13299229 is an apocalyptic number.

It is an amenable number.

13299229 is a deficient number, since it is larger than the sum of its proper divisors (1).

13299229 is an equidigital number, since it uses as much as digits as its factorization.

13299229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 37.

The square root of 13299229 is about 3646.8107984923. The cubic root of 13299229 is about 236.9238718857.

The spelling of 13299229 in words is "thirteen million, two hundred ninety-nine thousand, two hundred twenty-nine".