199930255 has 16 divisors (see below), whose sum is σ = 288622080. Its totient is φ = 129879072.

The previous prime is 199930231. The next prime is 199930259. The reversal of 199930255 is 552039991.

It is a cyclic number.

It is not a de Polignac number, because 199930255 - 2¹⁹ = 199405967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199930259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149659 + ... + 150988.

It is an arithmetic number, because the mean of its divisors is an integer number (18038880).

Almost surely, 2^199930255 is an apocalyptic number.

199930255 is a deficient number, since it is larger than the sum of its proper divisors (88691825).

199930255 is a wasteful number, since it uses less digits than its factorization.

199930255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300678.

The product of its (nonzero) digits is 109350, while the sum is 43.

The square root of 199930255 is about 14139.6695505942. The cubic root of 199930255 is about 584.7355612001.

The spelling of 199930255 in words is "one hundred ninety-nine million, nine hundred thirty thousand, two hundred fifty-five".