125515 has 8 divisors (see below), whose sum is σ = 162288. Its totient is φ = 92640.

The previous prime is 125509. The next prime is 125527. The reversal of 125515 is 515521.

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

It is not a de Polignac number, because 125515 - 2³ = 125507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125492 and 125501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (20286).

2¹²⁵⁵¹⁵ is an apocalyptic number.

125515 is a deficient number, since it is larger than the sum of its proper divisors (36773).

125515 is a wasteful number, since it uses less digits than its factorization.

125515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949.

The product of its digits is 250, while the sum is 19.

The square root of 125515 is about 354.2809619497. The cubic root of 125515 is about 50.0685725797.

The spelling of 125515 in words is "one hundred twenty-five thousand, five hundred fifteen".