13229999 has 2 divisors, whose sum is σ = 13230000. Its totient is φ = 13229998.

The previous prime is 13229981. The next prime is 13230001. The reversal of 13229999 is 99992231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13229999 - 2⁸ = 13229743 is a prime.

It is a Sophie Germain prime.

Together with 13230001, it forms a pair of twin primes.

It is a Chen prime.

13229999 is a modest number, since divided by 9999 gives 1322 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13229399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6614999 + 6615000.

It is an arithmetic number, because the mean of its divisors is an integer number (6615000).

Almost surely, 2^13229999 is an apocalyptic number.

13229999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13229999 is an equidigital number, since it uses as much as digits as its factorization.

13229999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78732, while the sum is 44.

The square root of 13229999 is about 3637.3065584303. The cubic root of 13229999 is about 236.5120489342.

The spelling of 13229999 in words is "thirteen million, two hundred twenty-nine thousand, nine hundred ninety-nine".