125889985 has 32 divisors (see below), whose sum is σ = 167110272. Its totient is φ = 90478080.

The previous prime is 125889983. The next prime is 125889997. The reversal of 125889985 is 589988521.

It is a happy number.

It is not a de Polignac number, because 125889985 - 2¹ = 125889983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125889983) 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 in 31 ways as a sum of consecutive naturals, for example, 596530 + ... + 596740.

It is an arithmetic number, because the mean of its divisors is an integer number (5222196).

Almost surely, 2^125889985 is an apocalyptic number.

It is an amenable number.

125889985 is a deficient number, since it is larger than the sum of its proper divisors (41220287).

125889985 is a wasteful number, since it uses less digits than its factorization.

125889985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its digits is 2073600, while the sum is 55.

The square root of 125889985 is about 11220.0706325762. The cubic root of 125889985 is about 501.1838414931.

The spelling of 125889985 in words is "one hundred twenty-five million, eight hundred eighty-nine thousand, nine hundred eighty-five".