126158459605 has 4 divisors (see below), whose sum is σ = 151390151532. Its totient is φ = 100926767680.

The previous prime is 126158459597. The next prime is 126158459627. The reversal of 126158459605 is 506954851621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96660053604 + 29498406001 = 310902^2 + 171751^2 .

It is not a de Polignac number, because 126158459605 - 2³ = 126158459597 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 3 ways as a sum of consecutive naturals, for example, 12615845956 + ... + 12615845965.

It is an arithmetic number, because the mean of its divisors is an integer number (37847537883).

Almost surely, 2^126158459605 is an apocalyptic number.

It is an amenable number.

126158459605 is a deficient number, since it is larger than the sum of its proper divisors (25231691927).

126158459605 is an equidigital number, since it uses as much as digits as its factorization.

126158459605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25231691926.

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 126158459605 in words is "one hundred twenty-six billion, one hundred fifty-eight million, four hundred fifty-nine thousand, six hundred five".