125115 has 16 divisors (see below), whose sum is σ = 211200. Its totient is φ = 63072.

The previous prime is 125113. The next prime is 125117. The reversal of 125115 is 511521.

It is an interprime number because it is at equal distance from previous prime (125113) and next prime (125117).

It is not a de Polignac number, because 125115 - 2¹ = 125113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 125094 and 125103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125113) 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 15 ways as a sum of consecutive naturals, for example, 66 + ... + 504.

It is an arithmetic number, because the mean of its divisors is an integer number (13200).

2¹²⁵¹¹⁵ is an apocalyptic number.

125115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125115 is a deficient number, since it is larger than the sum of its proper divisors (86085).

125115 is a wasteful number, since it uses less digits than its factorization.

125115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its digits is 50, while the sum is 15.

The square root of 125115 is about 353.7159877642. The cubic root of 125115 is about 50.0153286335.

Adding to 125115 its reverse (511521), we get a palindrome (636636).

The spelling of 125115 in words is "one hundred twenty-five thousand, one hundred fifteen".