13225999 has 2 divisors, whose sum is σ = 13226000. Its totient is φ = 13225998.

The previous prime is 13225997. The next prime is 13226009. The reversal of 13225999 is 99952231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13225999 - 2¹ = 13225997 is a prime.

Together with 13225997, 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 (13225997) 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, 6612999 + 6613000.

It is an arithmetic number, because the mean of its divisors is an integer number (6613000).

Almost surely, 2^13225999 is an apocalyptic number.

13225999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13225999 is an equidigital number, since it uses as much as digits as its factorization.

13225999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 40.

The square root of 13225999 is about 3636.7566594426. The cubic root of 13225999 is about 236.4882105964.

The spelling of 13225999 in words is "thirteen million, two hundred twenty-five thousand, nine hundred ninety-nine".