199196089 has 8 divisors (see below), whose sum is σ = 211294440. Its totient is φ = 187140096.

The previous prime is 199196069. The next prime is 199196113. The reversal of 199196089 is 980691991.

It can be written as a sum of positive squares in 4 ways, for example, as 75986089 + 123210000 = 8717^2 + 11100^2 .

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 199196089 - 2⁷ = 199195961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199196009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624 + ... + 19969.

It is an arithmetic number, because the mean of its divisors is an integer number (26411805).

Almost surely, 2^199196089 is an apocalyptic number.

It is an amenable number.

199196089 is a deficient number, since it is larger than the sum of its proper divisors (12098351).

199196089 is a wasteful number, since it uses less digits than its factorization.

199196089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21179.

The product of its (nonzero) digits is 314928, while the sum is 52.

The square root of 199196089 is about 14113.6844587089. The cubic root of 199196089 is about 584.0189454431.

The spelling of 199196089 in words is "one hundred ninety-nine million, one hundred ninety-six thousand, eighty-nine".