213283 has 4 divisors (see below), whose sum is σ = 243760. Its totient is φ = 182808.

The previous prime is 213281. The next prime is 213287. The reversal of 213283 is 382312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213283 - 2¹ = 213281 is a prime.

It is a d-powerful number, because it can be written as 2² + 1 + 2¹⁴ + 3⁹ + 8² + 3¹¹ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213283.

It is not an unprimeable number, because it can be changed into a prime (213281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15228 + ... + 15241.

It is an arithmetic number, because the mean of its divisors is an integer number (60940).

2²¹³²⁸³ is an apocalyptic number.

213283 is a deficient number, since it is larger than the sum of its proper divisors (30477).

213283 is an equidigital number, since it uses as much as digits as its factorization.

213283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30476.

The product of its digits is 288, while the sum is 19.

The square root of 213283 is about 461.8257247058. The cubic root of 213283 is about 59.7473636670.

Adding to 213283 its reverse (382312), we get a palindrome (595595).

It can be divided in two parts, 213 and 283, that added together give a triangular number (496 = T₃₁).

The spelling of 213283 in words is "two hundred thirteen thousand, two hundred eighty-three".