126218128 has 20 divisors (see below), whose sum is σ = 244722060. Its totient is φ = 63064064.

The previous prime is 126218119. The next prime is 126218161. The reversal of 126218128 is 821812621.

It can be written as a sum of positive squares in 2 ways, for example, as 29942784 + 96275344 = 5472^2 + 9812^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126218128.

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, 41028 + ... + 43996.

It is an arithmetic number, because the mean of its divisors is an integer number (12236103).

Almost surely, 2^126218128 is an apocalyptic number.

It is an amenable number.

126218128 is a deficient number, since it is larger than the sum of its proper divisors (118503932).

126218128 is a wasteful number, since it uses less digits than its factorization.

126218128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634 (or 5628 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 126218128 is about 11234.6841522136. The cubic root of 126218128 is about 501.6189231847.

The spelling of 126218128 in words is "one hundred twenty-six million, two hundred eighteen thousand, one hundred twenty-eight".