13920299 has 2 divisors, whose sum is σ = 13920300. Its totient is φ = 13920298.

The previous prime is 13920289. The next prime is 13920323. The reversal of 13920299 is 99202931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13920299 - 2⁸ = 13920043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13920239) 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 as a sum of consecutive naturals, namely, 6960149 + 6960150.

It is an arithmetic number, because the mean of its divisors is an integer number (6960150).

Almost surely, 2^13920299 is an apocalyptic number.

13920299 is a deficient number, since it is larger than the sum of its proper divisors (1).

13920299 is an equidigital number, since it uses as much as digits as its factorization.

13920299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13920299 is about 3730.9916912263. The cubic root of 13920299 is about 240.5559968330. Note that the first 3 decimals are identical.

The spelling of 13920299 in words is "thirteen million, nine hundred twenty thousand, two hundred ninety-nine".