125165 has 4 divisors (see below), whose sum is σ = 150204. Its totient is φ = 100128.

The previous prime is 125149. The next prime is 125183. The reversal of 125165 is 561521.

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 26569 + 98596 = 163^2 + 314^2 .

It is a cyclic number.

It is not a de Polignac number, because 125165 - 2⁴ = 125149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125165.

It is an unprimeable 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, 12512 + ... + 12521.

It is an arithmetic number, because the mean of its divisors is an integer number (37551).

2¹²⁵¹⁶⁵ is an apocalyptic number.

It is an amenable number.

125165 is a deficient number, since it is larger than the sum of its proper divisors (25039).

125165 is an equidigital number, since it uses as much as digits as its factorization.

125165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25038.

The product of its digits is 300, while the sum is 20.

The square root of 125165 is about 353.7866588779. The cubic root of 125165 is about 50.0219903271.

Adding to 125165 its reverse (561521), we get a palindrome (686686).

It can be divided in two parts, 12516 and 5, that added together give a palindrome (12521).

The spelling of 125165 in words is "one hundred twenty-five thousand, one hundred sixty-five".