213346 has 16 divisors (see below), whose sum is σ = 374400. Its totient is φ = 91140.

The previous prime is 213337. The next prime is 213349. The reversal of 213346 is 643312.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (213349) 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 7 ways as a sum of consecutive naturals, for example, 531 + ... + 841.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2²¹³³⁴⁶ is an apocalyptic number.

213346 is a deficient number, since it is larger than the sum of its proper divisors (161054).

213346 is an equidigital number, since it uses as much as digits as its factorization.

213346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 320 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 213346 is about 461.8939272171. The cubic root of 213346 is about 59.7532458569.

Adding to 213346 its reverse (643312), we get a palindrome (856658).

The spelling of 213346 in words is "two hundred thirteen thousand, three hundred forty-six".