125431828529305 has 16 divisors (see below), whose sum is σ = 159372474201360. Its totient is φ = 94442629404672.

The previous prime is 125431828529299. The next prime is 125431828529321. The reversal of 125431828529305 is 503925828134521.

It can be written as a sum of positive squares in 8 ways, for example, as 19892697175129 + 105539131354176 = 4460123^2 + 10273224^2 .

It is a cyclic number.

It is not a de Polignac number, because 125431828529305 - 2³ = 125431828529297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125431828529305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82435351 + ... + 83943139.

It is an arithmetic number, because the mean of its divisors is an integer number (9960779637585).

Almost surely, 2^{125431828529305} is an apocalyptic number.

It is an amenable number.

125431828529305 is a deficient number, since it is larger than the sum of its proper divisors (33940645672055).

125431828529305 is a wasteful number, since it uses less digits than its factorization.

125431828529305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486508.

The product of its (nonzero) digits is 20736000, while the sum is 58.

The spelling of 125431828529305 in words is "one hundred twenty-five trillion, four hundred thirty-one billion, eight hundred twenty-eight million, five hundred twenty-nine thousand, three hundred five".