125746189 has 2 divisors, whose sum is σ = 125746190. Its totient is φ = 125746188.

The previous prime is 125746141. The next prime is 125746217. The reversal of 125746189 is 981647521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122655625 + 3090564 = 11075^2 + 1758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125746189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125746109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62873094 + 62873095.

It is an arithmetic number, because the mean of its divisors is an integer number (62873095).

Almost surely, 2^125746189 is an apocalyptic number.

It is an amenable number.

125746189 is a deficient number, since it is larger than the sum of its proper divisors (1).

125746189 is an equidigital number, since it uses as much as digits as its factorization.

125746189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 125746189 is about 11213.6608206241. The cubic root of 125746189 is about 500.9929454799.

The spelling of 125746189 in words is "one hundred twenty-five million, seven hundred forty-six thousand, one hundred eighty-nine".