213266 has 8 divisors (see below), whose sum is σ = 331020. Its totient is φ = 102928.

The previous prime is 213263. The next prime is 213281. The reversal of 213266 is 662312.

It can be written as a sum of positive squares in 2 ways, for example, as 207025 + 6241 = 455^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 2¹⁵ + 3¹¹ + 6 + 6⁴ .

It is not an unprimeable number, because it can be changed into a prime (213263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781 + ... + 1896.

2²¹³²⁶⁶ is an apocalyptic number.

213266 is a deficient number, since it is larger than the sum of its proper divisors (117754).

213266 is a wasteful number, since it uses less digits than its factorization.

213266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708.

The product of its digits is 432, while the sum is 20.

The square root of 213266 is about 461.8073191278. The cubic root of 213266 is about 59.7457762109.

Adding to 213266 its reverse (662312), we get a palindrome (875578).

It can be divided in two parts, 21 and 3266, that multiplied together give a palindrome (68586).

The spelling of 213266 in words is "two hundred thirteen thousand, two hundred sixty-six".