126136375125 has 16 divisors (see below), whose sum is σ = 209890928832. Its totient is φ = 67272733200.

The previous prime is 126136375121. The next prime is 126136375147. The reversal of 126136375125 is 521573631621.

It is not a de Polignac number, because 126136375125 - 2² = 126136375121 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126136375121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168181459 + ... + 168182208.

It is an arithmetic number, because the mean of its divisors is an integer number (13118183052).

Almost surely, 2^126136375125 is an apocalyptic number.

126136375125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126136375125 is a deficient number, since it is larger than the sum of its proper divisors (83754553707).

126136375125 is an equidigital number, since it uses as much as digits as its factorization.

126136375125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336363685 (or 336363675 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The spelling of 126136375125 in words is "one hundred twenty-six billion, one hundred thirty-six million, three hundred seventy-five thousand, one hundred twenty-five".