125042543 has 8 divisors (see below), whose sum is σ = 127303680. Its totient is φ = 122798520.

The previous prime is 125042537. The next prime is 125042551. The reversal of 125042543 is 345240521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125042543 - 2⁴ = 125042527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125042243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10946 + ... + 19232.

It is an arithmetic number, because the mean of its divisors is an integer number (15912960).

Almost surely, 2^125042543 is an apocalyptic number.

125042543 is a deficient number, since it is larger than the sum of its proper divisors (2261137).

125042543 is an equidigital number, since it uses as much as digits as its factorization.

125042543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8557.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 125042543 is about 11182.2423064428. The cubic root of 125042543 is about 500.0567175660.

The spelling of 125042543 in words is "one hundred twenty-five million, forty-two thousand, five hundred forty-three".