199094506 has 24 divisors (see below), whose sum is σ = 327851820. Its totient is φ = 90619776.

The previous prime is 199094503. The next prime is 199094527. The reversal of 199094506 is 605490991.

It can be written as a sum of positive squares in 6 ways, for example, as 707281 + 198387225 = 841^2 + 14085^2 .

It is a Smith number, since the sum of its digits (43) 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 (199094503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20640 + ... + 28708.

Almost surely, 2^199094506 is an apocalyptic number.

199094506 is a deficient number, since it is larger than the sum of its proper divisors (128757314).

199094506 is a wasteful number, since it uses less digits than its factorization.

199094506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8170 (or 8157 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 199094506 is about 14110.0852584242. The cubic root of 199094506 is about 583.9196521881.

The spelling of 199094506 in words is "one hundred ninety-nine million, ninety-four thousand, five hundred six".