126387702125 has 32 divisors (see below), whose sum is σ = 166249830240. Its totient is φ = 95781504000.

The previous prime is 126387702101. The next prime is 126387702143. The reversal of 126387702125 is 521207783621.

It can be written as a sum of positive squares in 16 ways, for example, as 56608781476 + 69778920649 = 237926^2 + 264157^2 .

It is a de Polignac number, because none of the positive numbers 2^k-126387702125 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136796 + ... + 521045.

It is an arithmetic number, because the mean of its divisors is an integer number (5195307195).

Almost surely, 2^126387702125 is an apocalyptic number.

It is an amenable number.

126387702125 is a deficient number, since it is larger than the sum of its proper divisors (39862128115).

126387702125 is an equidigital number, since it uses as much as digits as its factorization.

126387702125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657938 (or 657928 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 126387702125 in words is "one hundred twenty-six billion, three hundred eighty-seven million, seven hundred two thousand, one hundred twenty-five".