1213326 has 16 divisors (see below), whose sum is σ = 2696400. Its totient is φ = 404424.

The previous prime is 1213301. The next prime is 1213327. The reversal of 1213326 is 6233121.

1213326 = T₁₃₁ + T₁₃₂ + ... + T₂₁₁.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1213299 and 1213308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11181 + ... + 11288.

It is an arithmetic number, because the mean of its divisors is an integer number (168525).

2^1213326 is an apocalyptic number.

1213326 is an abundant number, since it is smaller than the sum of its proper divisors (1483074).

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

1213326 is a wasteful number, since it uses less digits than its factorization.

1213326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22480 (or 22474 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 1213326 is about 1101.5107807008. The cubic root of 1213326 is about 106.6577705254.

Adding to 1213326 its reverse (6233121), we get a palindrome (7446447).

The spelling of 1213326 in words is "one million, two hundred thirteen thousand, three hundred twenty-six".