125320884985 has 8 divisors (see below), whose sum is σ = 151394358600. Its totient is φ = 99583843584.

The previous prime is 125320884979. The next prime is 125320885021. The reversal of 125320884985 is 589488023521.

It can be written as a sum of positive squares in 4 ways, for example, as 1011049209 + 124309835776 = 31797^2 + 352576^2 .

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 125320884985 - 2⁹ = 125320884473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84107232 + ... + 84108721.

It is an arithmetic number, because the mean of its divisors is an integer number (18924294825).

Almost surely, 2^125320884985 is an apocalyptic number.

It is an amenable number.

125320884985 is a deficient number, since it is larger than the sum of its proper divisors (26073473615).

125320884985 is a wasteful number, since it uses less digits than its factorization.

125320884985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168216107.

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 125320884985 in words is "one hundred twenty-five billion, three hundred twenty million, eight hundred eighty-four thousand, nine hundred eighty-five".