125435400441 has 32 divisors (see below), whose sum is σ = 182484610560. Its totient is φ = 76175334144.

The previous prime is 125435400421. The next prime is 125435400463. The reversal of 125435400441 is 144004534521.

It is a happy number.

It is not a de Polignac number, because 125435400441 - 2⁷ = 125435400313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125435400421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6809055 + ... + 6827451.

It is an arithmetic number, because the mean of its divisors is an integer number (5702644080).

Almost surely, 2^125435400441 is an apocalyptic number.

It is an amenable number.

125435400441 is a deficient number, since it is larger than the sum of its proper divisors (57049210119).

125435400441 is a wasteful number, since it uses less digits than its factorization.

125435400441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20705.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 125435400441 its reverse (144004534521), we get a palindrome (269439934962).

The spelling of 125435400441 in words is "one hundred twenty-five billion, four hundred thirty-five million, four hundred thousand, four hundred forty-one".