125043 has 4 divisors (see below), whose sum is σ = 166728. Its totient is φ = 83360.

The previous prime is 125029. The next prime is 125053. The reversal of 125043 is 340521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125043 - 2⁶ = 124979 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (125003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20838 + ... + 20843.

It is an arithmetic number, because the mean of its divisors is an integer number (41682).

125043 is a Friedman number, since it can be written as 50^3+42+1, using all its digits and the basic arithmetic operations.

2¹²⁵⁰⁴³ is an apocalyptic number.

125043 is a deficient number, since it is larger than the sum of its proper divisors (41685).

125043 is an equidigital number, since it uses as much as digits as its factorization.

125043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41684.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 125043 is about 353.6141965476. The cubic root of 125043 is about 50.0057326760.

Adding to 125043 its reverse (340521), we get a palindrome (465564).

It can be divided in two parts, 12 and 5043, that multiplied together give a square (60516 = 246²).

The spelling of 125043 in words is "one hundred twenty-five thousand, forty-three".