125018 has 8 divisors (see below), whose sum is σ = 198612. Its totient is φ = 58816.

The previous prime is 125017. The next prime is 125029. The reversal of 125018 is 810521.

It can be written as a sum of positive squares in 2 ways, for example, as 113569 + 11449 = 337^2 + 107^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 124987 and 125005.

It is not an unprimeable number, because it can be changed into a prime (125017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1805 + ... + 1872.

125018 is a Friedman number, since it can be written as 50^(2+1)+18, using all its digits and the basic arithmetic operations.

2¹²⁵⁰¹⁸ is an apocalyptic number.

125018 is a deficient number, since it is larger than the sum of its proper divisors (73594).

125018 is a wasteful number, since it uses less digits than its factorization.

125018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 125018 is about 353.5788455211. The cubic root of 125018 is about 50.0023998848.

Adding to 125018 its reverse (810521), we get a palindrome (935539).

It can be divided in two parts, 1250 and 18, that multiplied together give a square (22500 = 150²).

The spelling of 125018 in words is "one hundred twenty-five thousand, eighteen".