126387500125 has 16 divisors (see below), whose sum is σ = 157777714224. Its totient is φ = 101080440000.

The previous prime is 126387500081. The next prime is 126387500137. The reversal of 126387500125 is 521005783621.

It can be written as a sum of positive squares in 8 ways, for example, as 54036721764 + 72350778361 = 232458^2 + 268981^2 .

It is not a de Polignac number, because 126387500125 - 2¹⁹ = 126386975837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286555 + ... + 578695.

It is an arithmetic number, because the mean of its divisors is an integer number (9861107139).

Almost surely, 2^126387500125 is an apocalyptic number.

It is an amenable number.

126387500125 is a deficient number, since it is larger than the sum of its proper divisors (31390214099).

126387500125 is an equidigital number, since it uses as much as digits as its factorization.

126387500125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295617 (or 295607 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 126387500125 in words is "one hundred twenty-six billion, three hundred eighty-seven million, five hundred thousand, one hundred twenty-five".