125045 has 8 divisors (see below), whose sum is σ = 152280. Its totient is φ = 98560.

The previous prime is 125029. The next prime is 125053. The reversal of 125045 is 540521.

It can be written as a sum of positive squares in 4 ways, for example, as 7396 + 117649 = 86^2 + 343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125045 - 2⁴ = 125029 is a prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305 + ... + 585.

It is an arithmetic number, because the mean of its divisors is an integer number (19035).

125045 is a Friedman number, since it can be written as 50^(2+1)+45, using all its digits and the basic arithmetic operations.

2¹²⁵⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

125045 is a deficient number, since it is larger than the sum of its proper divisors (27235).

125045 is an equidigital number, since it uses as much as digits as its factorization.

125045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 125045 is about 353.6170244770. The cubic root of 125045 is about 50.0059992801.

Adding to 125045 its reverse (540521), we get a palindrome (665566).

The spelling of 125045 in words is "one hundred twenty-five thousand, forty-five".