199134085 has 4 divisors (see below), whose sum is σ = 238960908. Its totient is φ = 159307264.

The previous prime is 199134071. The next prime is 199134109. The reversal of 199134085 is 580431991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580431991 = 53 ⋅10951547.

It can be written as a sum of positive squares in 2 ways, for example, as 30316036 + 168818049 = 5506^2 + 12993^2 .

It is a cyclic number.

It is not a de Polignac number, because 199134085 - 2¹³ = 199125893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19913404 + ... + 19913413.

It is an arithmetic number, because the mean of its divisors is an integer number (59740227).

Almost surely, 2^199134085 is an apocalyptic number.

It is an amenable number.

199134085 is a deficient number, since it is larger than the sum of its proper divisors (39826823).

199134085 is an equidigital number, since it uses as much as digits as its factorization.

199134085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39826822.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 199134085 is about 14111.4876961999. The cubic root of 199134085 is about 583.9583430676.

The spelling of 199134085 in words is "one hundred ninety-nine million, one hundred thirty-four thousand, eighty-five".