125000126189 has 2 divisors, whose sum is σ = 125000126190. Its totient is φ = 125000126188.

The previous prime is 125000126177. The next prime is 125000126201. The reversal of 125000126189 is 981621000521.

It is a balanced prime because it is at equal distance from previous prime (125000126177) and next prime (125000126201).

It can be written as a sum of positive squares in only one way, i.e., 116284410025 + 8715716164 = 341005^2 + 93358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125000126189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125000126089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62500063094 + 62500063095.

It is an arithmetic number, because the mean of its divisors is an integer number (62500063095).

Almost surely, 2^125000126189 is an apocalyptic number.

It is an amenable number.

125000126189 is a deficient number, since it is larger than the sum of its proper divisors (1).

125000126189 is an equidigital number, since it uses as much as digits as its factorization.

125000126189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 125000126189 in words is "one hundred twenty-five billion, one hundred twenty-six thousand, one hundred eighty-nine".