125384189 has 6 divisors (see below), whose sum is σ = 145855134. Its totient is φ = 107472120.

The previous prime is 125384159. The next prime is 125384213. The reversal of 125384189 is 981483521.

It can be written as a sum of positive squares in only one way, i.e., 69388900 + 55995289 = 8330^2 + 7483^2 .

It is not a de Polignac number, because 125384189 - 2²⁴ = 108606973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125384159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1279382 + ... + 1279479.

It is an arithmetic number, because the mean of its divisors is an integer number (24309189).

Almost surely, 2^125384189 is an apocalyptic number.

It is an amenable number.

125384189 is a deficient number, since it is larger than the sum of its proper divisors (20470945).

125384189 is an equidigital number, since it uses as much as digits as its factorization.

125384189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558875 (or 2558868 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 125384189 is about 11197.5081603007. The cubic root of 125384189 is about 500.5117280901.

The spelling of 125384189 in words is "one hundred twenty-five million, three hundred eighty-four thousand, one hundred eighty-nine".