199285743 has 8 divisors (see below), whose sum is σ = 265852800. Its totient is φ = 132787928.

The previous prime is 199285729. The next prime is 199285753. The reversal of 199285743 is 347582991.

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

It is a cyclic number.

It is not a de Polignac number, because 199285743 - 2⁴ = 199285727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199285692 and 199285701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199285703) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10173 + ... + 22406.

It is an arithmetic number, because the mean of its divisors is an integer number (33231600).

Almost surely, 2^199285743 is an apocalyptic number.

199285743 is a deficient number, since it is larger than the sum of its proper divisors (66567057).

199285743 is a wasteful number, since it uses less digits than its factorization.

199285743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34621.

The product of its digits is 544320, while the sum is 48.

The square root of 199285743 is about 14116.8602387358. The cubic root of 199285743 is about 584.1065505453.

It can be divided in two parts, 199285 and 743, that added together give a triangular number (200028 = T₆₃₂).

The spelling of 199285743 in words is "one hundred ninety-nine million, two hundred eighty-five thousand, seven hundred forty-three".