224126989 has 2 divisors, whose sum is σ = 224126990. Its totient is φ = 224126988.

The previous prime is 224126977. The next prime is 224127011. The reversal of 224126989 is 989621422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209033764 + 15093225 = 14458^2 + 3885^2 .

It is a cyclic number.

It is not a de Polignac number, because 224126989 - 2¹¹ = 224124941 is a prime.

It is a super-2 number, since 2×224126989² = 100465814396412242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224126909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112063494 + 112063495.

It is an arithmetic number, because the mean of its divisors is an integer number (112063495).

Almost surely, 2^224126989 is an apocalyptic number.

It is an amenable number.

224126989 is a deficient number, since it is larger than the sum of its proper divisors (1).

224126989 is an equidigital number, since it uses as much as digits as its factorization.

224126989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 224126989 is about 14970.8713507264. The cubic root of 224126989 is about 607.4325385864.

The spelling of 224126989 in words is "two hundred twenty-four million, one hundred twenty-six thousand, nine hundred eighty-nine".