125756243 has 8 divisors (see below), whose sum is σ = 131007360. Its totient is φ = 120579840.

The previous prime is 125756237. The next prime is 125756251. The reversal of 125756243 is 342657521.

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 125756243 - 2¹⁸ = 125494099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125756233) 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, 15230 + ... + 21987.

It is an arithmetic number, because the mean of its divisors is an integer number (16375920).

Almost surely, 2^125756243 is an apocalyptic number.

125756243 is a deficient number, since it is larger than the sum of its proper divisors (5251117).

125756243 is a wasteful number, since it uses less digits than its factorization.

125756243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37357.

The product of its digits is 50400, while the sum is 35.

The square root of 125756243 is about 11214.1091041598. The cubic root of 125756243 is about 501.0062973725.

The spelling of 125756243 in words is "one hundred twenty-five million, seven hundred fifty-six thousand, two hundred forty-three".