126214789 has 2 divisors, whose sum is σ = 126214790. Its totient is φ = 126214788.

The previous prime is 126214763. The next prime is 126214799. The reversal of 126214789 is 987412621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124701889 + 1512900 = 11167^2 + 1230^2 .

It is a cyclic number.

It is not a de Polignac number, because 126214789 - 2⁷ = 126214661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126214729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63107394 + 63107395.

It is an arithmetic number, because the mean of its divisors is an integer number (63107395).

Almost surely, 2^126214789 is an apocalyptic number.

It is an amenable number.

126214789 is a deficient number, since it is larger than the sum of its proper divisors (1).

126214789 is an equidigital number, since it uses as much as digits as its factorization.

126214789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 126214789 is about 11234.5355489223. The cubic root of 126214789 is about 501.6144998361.

The spelling of 126214789 in words is "one hundred twenty-six million, two hundred fourteen thousand, seven hundred eighty-nine".