125418 has 8 divisors (see below), whose sum is σ = 250848. Its totient is φ = 41804.

The previous prime is 125407. The next prime is 125423. The reversal of 125418 is 814521.

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

125418 is an admirable number.

It is an Ulam number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125394 and 125403.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125418.

It is an unprimeable number.

125418 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10446 + ... + 10457.

It is an arithmetic number, because the mean of its divisors is an integer number (31356).

2¹²⁵⁴¹⁸ is an apocalyptic number.

125418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125418 is a wasteful number, since it uses less digits than its factorization.

125418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20908.

The product of its digits is 320, while the sum is 21.

The square root of 125418 is about 354.1440384928. The cubic root of 125418 is about 50.0556713244.

Adding to 125418 its reverse (814521), we get a palindrome (939939).

The spelling of 125418 in words is "one hundred twenty-five thousand, four hundred eighteen".