199994130 has 64 divisors (see below), whose sum is σ = 609511680. Its totient is φ = 45712512.

The previous prime is 199994087. The next prime is 199994141. The reversal of 199994130 is 31499991.

199994130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51019 + ... + 54798.

It is an arithmetic number, because the mean of its divisors is an integer number (9523620).

Almost surely, 2^199994130 is an apocalyptic number.

199994130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199994130 is an abundant number, since it is smaller than the sum of its proper divisors (409517550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199994130 is a wasteful number, since it uses less digits than its factorization.

199994130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105840 (or 105834 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 199994130 is about 14141.9280863679. The cubic root of 199994130 is about 584.7978262586.

The spelling of 199994130 in words is "one hundred ninety-nine million, nine hundred ninety-four thousand, one hundred thirty".