199134568 has 16 divisors (see below), whose sum is σ = 380422980. Its totient is φ = 97688448.

The previous prime is 199134553. The next prime is 199134577. The reversal of 199134568 is 865431991.

It can be written as a sum of positive squares in 2 ways, for example, as 190384804 + 8749764 = 13798^2 + 2958^2 .

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, 234405 + ... + 235252.

Almost surely, 2^199134568 is an apocalyptic number.

It is an amenable number.

199134568 is a deficient number, since it is larger than the sum of its proper divisors (181288412).

199134568 is a wasteful number, since it uses less digits than its factorization.

199134568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469716 (or 469712 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 199134568 is about 14111.5048099060. The cubic root of 199134568 is about 583.9588151978.

The spelling of 199134568 in words is "one hundred ninety-nine million, one hundred thirty-four thousand, five hundred sixty-eight".