126433222189 has 2 divisors, whose sum is σ = 126433222190. Its totient is φ = 126433222188.

The previous prime is 126433222187. The next prime is 126433222217. The reversal of 126433222189 is 981222334621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69441209289 + 56992012900 = 263517^2 + 238730^2 .

It is a cyclic number.

It is not a de Polignac number, because 126433222189 - 2¹ = 126433222187 is a prime.

Together with 126433222187, 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 (126433222187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63216611094 + 63216611095.

It is an arithmetic number, because the mean of its divisors is an integer number (63216611095).

Almost surely, 2^126433222189 is an apocalyptic number.

It is an amenable number.

126433222189 is a deficient number, since it is larger than the sum of its proper divisors (1).

126433222189 is an equidigital number, since it uses as much as digits as its factorization.

126433222189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The spelling of 126433222189 in words is "one hundred twenty-six billion, four hundred thirty-three million, two hundred twenty-two thousand, one hundred eighty-nine".