126324254389 has 2 divisors, whose sum is σ = 126324254390. Its totient is φ = 126324254388.

The previous prime is 126324254327. The next prime is 126324254393. The reversal of 126324254389 is 983452423621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84803264100 + 41520990289 = 291210^2 + 203767^2 .

It is a cyclic number.

It is not a de Polignac number, because 126324254389 - 2³³ = 117734319797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126324204389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63162127194 + 63162127195.

It is an arithmetic number, because the mean of its divisors is an integer number (63162127195).

Almost surely, 2^126324254389 is an apocalyptic number.

It is an amenable number.

126324254389 is a deficient number, since it is larger than the sum of its proper divisors (1).

126324254389 is an equidigital number, since it uses as much as digits as its factorization.

126324254389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 49.

The spelling of 126324254389 in words is "one hundred twenty-six billion, three hundred twenty-four million, two hundred fifty-four thousand, three hundred eighty-nine".