1213266 has 16 divisors (see below), whose sum is σ = 2437344. Its totient is φ = 402624.

The previous prime is 1213259. The next prime is 1213271. The reversal of 1213266 is 6623121.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2365 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (152334).

2^1213266 is an apocalyptic number.

1213266 is an abundant number, since it is smaller than the sum of its proper divisors (1224078).

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

1213266 is a wasteful number, since it uses less digits than its factorization.

1213266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its digits is 432, while the sum is 21.

The square root of 1213266 is about 1101.4835450428. The cubic root of 1213266 is about 106.6560123907.

Adding to 1213266 its reverse (6623121), we get a palindrome (7836387).

The spelling of 1213266 in words is "one million, two hundred thirteen thousand, two hundred sixty-six".