125720 has 32 divisors (see below), whose sum is σ = 324000. Its totient is φ = 43008.

The previous prime is 125717. The next prime is 125731. The reversal of 125720 is 27521.

125720 = 131² + 132² + ... + 137².

It is a congruent number.

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, 56 + ... + 504.

It is an arithmetic number, because the mean of its divisors is an integer number (10125).

2¹²⁵⁷²⁰ is an apocalyptic number.

125720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162000).

125720 is an abundant number, since it is smaller than the sum of its proper divisors (198280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125720 is a wasteful number, since it uses less digits than its factorization.

125720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 125720 is about 354.5701623092. The cubic root of 125720 is about 50.0958162676.

125720 divided by its product of nonzero digits (140) gives a palindrome (898).

It can be divided in two parts, 125 and 720, that multiplied together give a square (90000 = 300²).

The spelling of 125720 in words is "one hundred twenty-five thousand, seven hundred twenty".