199998130 has 16 divisors (see below), whose sum is σ = 364043160. Its totient is φ = 79100032.

The previous prime is 199998107. The next prime is 199998131. The reversal of 199998130 is 31899991.

It can be written as a sum of positive squares in 4 ways, for example, as 145371249 + 54626881 = 12057^2 + 7391^2 .

It is not an unprimeable number, because it can be changed into a prime (199998131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111469 + ... + 113248.

Almost surely, 2^199998130 is an apocalyptic number.

199998130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199998130 is a deficient number, since it is larger than the sum of its proper divisors (164045030).

199998130 is a wasteful number, since it uses less digits than its factorization.

199998130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224813.

The product of its (nonzero) digits is 157464, while the sum is 49.

The square root of 199998130 is about 14142.0695090924. The cubic root of 199998130 is about 584.8017249992.

The spelling of 199998130 in words is "one hundred ninety-nine million, nine hundred ninety-eight thousand, one hundred thirty".