125715 has 24 divisors (see below), whose sum is σ = 221040. Its totient is φ = 60928.

The previous prime is 125711. The next prime is 125717. The reversal of 125715 is 517521.

It is not a de Polignac number, because 125715 - 2² = 125711 is a prime.

It is a super-2 number, since 2×125715² = 31608522450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125691 and 125700.

It is not an unprimeable number, because it can be changed into a prime (125711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4321 + ... + 4349.

It is an arithmetic number, because the mean of its divisors is an integer number (9210).

2¹²⁵⁷¹⁵ is an apocalyptic number.

125715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125715 is a deficient number, since it is larger than the sum of its proper divisors (95325).

125715 is a wasteful number, since it uses less digits than its factorization.

125715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 54 counting only the distinct ones).

The product of its digits is 350, while the sum is 21.

The square root of 125715 is about 354.5631114484. The cubic root of 125715 is about 50.0951521399.

The spelling of 125715 in words is "one hundred twenty-five thousand, seven hundred fifteen".