125738323189 has 2 divisors, whose sum is σ = 125738323190. Its totient is φ = 125738323188.

The previous prime is 125738323069. The next prime is 125738323219. The reversal of 125738323189 is 981323837521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119754063025 + 5984260164 = 346055^2 + 77358^2 .

It is a cyclic number.

It is not a de Polignac number, because 125738323189 - 2²⁵ = 125704768757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125738323589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62869161594 + 62869161595.

It is an arithmetic number, because the mean of its divisors is an integer number (62869161595).

Almost surely, 2^125738323189 is an apocalyptic number.

It is an amenable number.

125738323189 is a deficient number, since it is larger than the sum of its proper divisors (1).

125738323189 is an equidigital number, since it uses as much as digits as its factorization.

125738323189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The spelling of 125738323189 in words is "one hundred twenty-five billion, seven hundred thirty-eight million, three hundred twenty-three thousand, one hundred eighty-nine".