125801 has 4 divisors (see below), whose sum is σ = 135492. Its totient is φ = 116112.

The previous prime is 125791. The next prime is 125803. The reversal of 125801 is 108521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50176 + 75625 = 224^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 125801 - 2⁶ = 125737 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 125801.

It is not an unprimeable number, because it can be changed into a prime (125803) 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 3 ways as a sum of consecutive naturals, for example, 4826 + ... + 4851.

It is an arithmetic number, because the mean of its divisors is an integer number (33873).

2¹²⁵⁸⁰¹ is an apocalyptic number.

It is an amenable number.

125801 is a deficient number, since it is larger than the sum of its proper divisors (9691).

125801 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 125801 = (211508)₉.

125801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690.

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

The square root of 125801 is about 354.6843667262. The cubic root of 125801 is about 50.1065726839.

The spelling of 125801 in words is "one hundred twenty-five thousand, eight hundred one".