196530 has 16 divisors (see below), whose sum is σ = 471744. Its totient is φ = 52400.

The previous prime is 196523. The next prime is 196541. The reversal of 196530 is 35691.

Added to its reverse (35691) it gives a triangular number (232221 = T₆₈₁).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 196530.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 196530.

It is an unprimeable number.

196530 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3246 + ... + 3305.

It is an arithmetic number, because the mean of its divisors is an integer number (29484).

196530 is a Friedman number, since it can be written as 10*(3^9-6*5), using all its digits and the basic arithmetic operations.

2¹⁹⁶⁵³⁰ is an apocalyptic number.

196530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196530 is an abundant number, since it is smaller than the sum of its proper divisors (275214).

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

196530 is a wasteful number, since it uses less digits than its factorization.

196530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 196530 is about 443.3170423072. The cubic root of 196530 is about 58.1401683156.

Adding to 196530 its reverse (35691), we get a triangular number (232221 = T₆₈₁).

The spelling of 196530 in words is "one hundred ninety-six thousand, five hundred thirty".