199530 has 32 divisors (see below), whose sum is σ = 532800. Its totient is φ = 53136.

The previous prime is 199523. The next prime is 199559. The reversal of 199530 is 35991.

199530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 199494 and 199503.

It is an unprimeable number.

199530 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100 + ... + 639.

It is an arithmetic number, because the mean of its divisors is an integer number (16650).

2¹⁹⁹⁵³⁰ is an apocalyptic number.

199530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199530 is an abundant number, since it is smaller than the sum of its proper divisors (333270).

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

199530 is a wasteful number, since it uses less digits than its factorization.

199530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 199530 is about 446.6878104448. The cubic root of 199530 is about 58.4345092219.

It can be divided in two parts, 1995 and 30, that added together give a square (2025 = 45²).

The spelling of 199530 in words is "one hundred ninety-nine thousand, five hundred thirty".