190206 has 12 divisors (see below), whose sum is σ = 412152. Its totient is φ = 63396.
The previous prime is 190181. The next prime is 190207. The reversal of 190206 is 602091.
It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 10567 = 190206 / (1 + 9 + 0 + 2 + 0 + 6).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (190207) by changing a digit.
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 5 ways as a sum of consecutive naturals, for example, 5266 + ... + 5301.
It is an arithmetic number, because the mean of its divisors is an integer number (34346).
2190206 is an apocalyptic number.
190206 is an abundant number, since it is smaller than the sum of its proper divisors (221946).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
190206 is a wasteful number, since it uses less digits than its factorization.
190206 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10575 (or 10572 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
The square root of 190206 is about 436.1261285454. The cubic root of 190206 is about 57.5097400009.
Adding to 190206 its reverse (602091), we get a palindrome (792297).
The spelling of 190206 in words is "one hundred ninety thousand, two hundred six".
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