199126742 has 8 divisors (see below), whose sum is σ = 302897232. Its totient is φ = 98161000.

The previous prime is 199126727. The next prime is 199126751. The reversal of 199126742 is 247621991.

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

It is a self number, because there is not a number n which added to its sum of digits gives 199126742.

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 3 ways as a sum of consecutive naturals, for example, 701009 + ... + 701292.

It is an arithmetic number, because the mean of its divisors is an integer number (37862154).

Almost surely, 2^199126742 is an apocalyptic number.

199126742 is a deficient number, since it is larger than the sum of its proper divisors (103770490).

199126742 is a wasteful number, since it uses less digits than its factorization.

199126742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402374.

The product of its digits is 54432, while the sum is 41.

The square root of 199126742 is about 14111.2275157054. The cubic root of 199126742 is about 583.9511652259.

The spelling of 199126742 in words is "one hundred ninety-nine million, one hundred twenty-six thousand, seven hundred forty-two".