125955923189 has 2 divisors, whose sum is σ = 125955923190. Its totient is φ = 125955923188.

The previous prime is 125955923179. The next prime is 125955923243. The reversal of 125955923189 is 981329559521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104681367025 + 21274556164 = 323545^2 + 145858^2 .

It is an emirp because it is prime and its reverse (981329559521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125955923189 - 2²⁴ = 125939145973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125955923179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62977961594 + 62977961595.

It is an arithmetic number, because the mean of its divisors is an integer number (62977961595).

Almost surely, 2^125955923189 is an apocalyptic number.

It is an amenable number.

125955923189 is a deficient number, since it is larger than the sum of its proper divisors (1).

125955923189 is an equidigital number, since it uses as much as digits as its factorization.

125955923189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748000, while the sum is 59.

The spelling of 125955923189 in words is "one hundred twenty-five billion, nine hundred fifty-five million, nine hundred twenty-three thousand, one hundred eighty-nine".