126218194 has 8 divisors (see below), whose sum is σ = 189491148. Its totient is φ = 63054480.

The previous prime is 126218177. The next prime is 126218203. The reversal of 126218194 is 491812621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114211969 + 12006225 = 10687^2 + 3465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24357 + ... + 29080.

Almost surely, 2^126218194 is an apocalyptic number.

126218194 is a deficient number, since it is larger than the sum of its proper divisors (63272954).

126218194 is a wasteful number, since it uses less digits than its factorization.

126218194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54620.

The product of its digits is 6912, while the sum is 34.

The square root of 126218194 is about 11234.6870895455. The cubic root of 126218194 is about 501.6190106176.

The spelling of 126218194 in words is "one hundred twenty-six million, two hundred eighteen thousand, one hundred ninety-four".