199134459 has 18 divisors (see below), whose sum is σ = 303579276. Its totient is φ = 125767080.

The previous prime is 199134451. The next prime is 199134461. The reversal of 199134459 is 954431991.

199134459 is a `hidden beast` number, since 199 + 1 + 3 + 4 + 459 = 666.

It is not a de Polignac number, because 199134459 - 2³ = 199134451 is a prime.

It is a super-2 number, since 2×199134459² = 79309065522445362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (199134451) 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 17 ways as a sum of consecutive naturals, for example, 27397 + ... + 33894.

Almost surely, 2^199134459 is an apocalyptic number.

199134459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

199134459 is a deficient number, since it is larger than the sum of its proper divisors (104444817).

199134459 is a wasteful number, since it uses less digits than its factorization.

199134459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61335 (or 61313 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 199134459 is about 14111.5009478085. The cubic root of 199134459 is about 583.9587086509.

The spelling of 199134459 in words is "one hundred ninety-nine million, one hundred thirty-four thousand, four hundred fifty-nine".