126438333125 has 20 divisors (see below), whose sum is σ = 170150993628. Its totient is φ = 93369840000.

The previous prime is 126438333061. The next prime is 126438333149. The reversal of 126438333125 is 521333834621.

It can be written as a sum of positive squares in 10 ways, for example, as 113123250244 + 13315082881 = 336338^2 + 115391^2 .

It is not a de Polignac number, because 126438333125 - 2⁶ = 126438333061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7772696 + ... + 7788945.

Almost surely, 2^126438333125 is an apocalyptic number.

It is an amenable number.

126438333125 is a deficient number, since it is larger than the sum of its proper divisors (43712660503).

126438333125 is an equidigital number, since it uses as much as digits as its factorization.

126438333125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561674 (or 15561659 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The spelling of 126438333125 in words is "one hundred twenty-six billion, four hundred thirty-eight million, three hundred thirty-three thousand, one hundred twenty-five".