126435317205 has 8 divisors (see below), whose sum is σ = 202296507552. Its totient is φ = 67432169168.

The previous prime is 126435317171. The next prime is 126435317237. The reversal of 126435317205 is 502713534621.

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 126435317205 - 2⁸ = 126435316949 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 4214510559 + ... + 4214510588.

It is an arithmetic number, because the mean of its divisors is an integer number (25287063444).

Almost surely, 2^126435317205 is an apocalyptic number.

126435317205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126435317205 is a deficient number, since it is larger than the sum of its proper divisors (75861190347).

126435317205 is an equidigital number, since it uses as much as digits as its factorization.

126435317205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8429021155.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 126435317205 in words is "one hundred twenty-six billion, four hundred thirty-five million, three hundred seventeen thousand, two hundred five".