125305 has 8 divisors (see below), whose sum is σ = 158400. Its totient is φ = 94896.

The previous prime is 125303. The next prime is 125311. The reversal of 125305 is 503521.

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

It is a cyclic number.

It is not a de Polignac number, because 125305 - 2¹ = 125303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 565 + ... + 754.

It is an arithmetic number, because the mean of its divisors is an integer number (19800).

2¹²⁵³⁰⁵ is an apocalyptic number.

It is an amenable number.

125305 is a deficient number, since it is larger than the sum of its proper divisors (33095).

125305 is a wasteful number, since it uses less digits than its factorization.

125305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 125305 is about 353.9844629359. The cubic root of 125305 is about 50.0406336359.

Adding to 125305 its reverse (503521), we get a palindrome (628826).

The spelling of 125305 in words is "one hundred twenty-five thousand, three hundred five".