13224989 has 2 divisors, whose sum is σ = 13224990. Its totient is φ = 13224988.

The previous prime is 13224961. The next prime is 13225039. The reversal of 13224989 is 98942231.

13224989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8602489 + 4622500 = 2933^2 + 2150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13224989 is a prime.

It is a super-5 number, since 5×13224989⁵ (a number of 37 digits) contains 55555 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13224949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6612494 + 6612495.

It is an arithmetic number, because the mean of its divisors is an integer number (6612495).

Almost surely, 2^13224989 is an apocalyptic number.

It is an amenable number.

13224989 is a deficient number, since it is larger than the sum of its proper divisors (1).

13224989 is an equidigital number, since it uses as much as digits as its factorization.

13224989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 13224989 is about 3636.6177967997. The cubic root of 13224989 is about 236.4821906561.

The spelling of 13224989 in words is "thirteen million, two hundred twenty-four thousand, nine hundred eighty-nine".