199274029 has 4 divisors (see below), whose sum is σ = 200426076. Its totient is φ = 198121984.

The previous prime is 199274021. The next prime is 199274039. The reversal of 199274029 is 920472991.

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 182871529 + 16402500 = 13523^2 + 4050^2 .

It is a cyclic number.

It is not a de Polignac number, because 199274029 - 2³ = 199274021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199274021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575764 + ... + 576109.

It is an arithmetic number, because the mean of its divisors is an integer number (50106519).

Almost surely, 2^199274029 is an apocalyptic number.

It is an amenable number.

199274029 is a deficient number, since it is larger than the sum of its proper divisors (1152047).

199274029 is a wasteful number, since it uses less digits than its factorization.

199274029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152046.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 199274029 is about 14116.4453386821. The cubic root of 199274029 is about 584.0951057423.

The spelling of 199274029 in words is "one hundred ninety-nine million, two hundred seventy-four thousand, twenty-nine".