125857443 has 32 divisors (see below), whose sum is σ = 182545920. Its totient is φ = 76838400.

The previous prime is 125857421. The next prime is 125857453. The reversal of 125857443 is 344758521.

It is not a de Polignac number, because 125857443 - 2¹² = 125853347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125857453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 454221 + ... + 454497.

It is an arithmetic number, because the mean of its divisors is an integer number (5704560).

Almost surely, 2^125857443 is an apocalyptic number.

125857443 is a deficient number, since it is larger than the sum of its proper divisors (56688477).

125857443 is a wasteful number, since it uses less digits than its factorization.

125857443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

The product of its digits is 134400, while the sum is 39.

The square root of 125857443 is about 11218.6203697246. The cubic root of 125857443 is about 501.1406531752.

The spelling of 125857443 in words is "one hundred twenty-five million, eight hundred fifty-seven thousand, four hundred forty-three".