125489 has 12 divisors (see below), whose sum is σ = 158004. Its totient is φ = 98784.

The previous prime is 125471. The next prime is 125497. The reversal of 125489 is 984521.

It can be written as a sum of positive squares in 2 ways, for example, as 78400 + 47089 = 280^2 + 217^2 .

It is a de Polignac number, because none of the positive numbers 2^k-125489 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (125429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539 + ... + 735.

It is an arithmetic number, because the mean of its divisors is an integer number (13167).

2¹²⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

125489 is a deficient number, since it is larger than the sum of its proper divisors (32515).

125489 is a wasteful number, since it uses less digits than its factorization.

125489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 217 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 125489 is about 354.2442660086. The cubic root of 125489 is about 50.0651151635.

The spelling of 125489 in words is "one hundred twenty-five thousand, four hundred eighty-nine".