125045189 has 2 divisors, whose sum is σ = 125045190. Its totient is φ = 125045188.

The previous prime is 125045177. The next prime is 125045197. The reversal of 125045189 is 981540521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90916225 + 34128964 = 9535^2 + 5842^2 .

It is a cyclic number.

It is not a de Polignac number, because 125045189 - 2¹⁶ = 124979653 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 (125044189) 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, 62522594 + 62522595.

It is an arithmetic number, because the mean of its divisors is an integer number (62522595).

Almost surely, 2^125045189 is an apocalyptic number.

It is an amenable number.

125045189 is a deficient number, since it is larger than the sum of its proper divisors (1).

125045189 is an equidigital number, since it uses as much as digits as its factorization.

125045189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 125045189 is about 11182.3606184025. The cubic root of 125045189 is about 500.0602447409.

The spelling of 125045189 in words is "one hundred twenty-five million, forty-five thousand, one hundred eighty-nine".