125715543 has 16 divisors (see below), whose sum is σ = 169389696. Its totient is φ = 82931040.

The previous prime is 125715521. The next prime is 125715559. The reversal of 125715543 is 345517521.

It is not a de Polignac number, because 125715543 - 2⁶ = 125715479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125715593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154608 + ... + 155418.

It is an arithmetic number, because the mean of its divisors is an integer number (10586856).

Almost surely, 2^125715543 is an apocalyptic number.

125715543 is a deficient number, since it is larger than the sum of its proper divisors (43674153).

125715543 is a wasteful number, since it uses less digits than its factorization.

125715543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294.

The product of its digits is 21000, while the sum is 33.

The square root of 125715543 is about 11212.2942790492. The cubic root of 125715543 is about 500.9522426499.

The spelling of 125715543 in words is "one hundred twenty-five million, seven hundred fifteen thousand, five hundred forty-three".