1231266 has 8 divisors (see below), whose sum is σ = 2462544. Its totient is φ = 410420.

The previous prime is 1231261. The next prime is 1231267. The reversal of 1231266 is 6621321.

It is a happy number.

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

1231266 is an admirable number.

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

It is not an unprimeable number, because it can be changed into a prime (1231261) 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, 102600 + ... + 102611.

It is an arithmetic number, because the mean of its divisors is an integer number (307818).

2^1231266 is an apocalyptic number.

1231266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1231266 is a wasteful number, since it uses less digits than its factorization.

1231266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205216.

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

The square root of 1231266 is about 1109.6242607297. The cubic root of 1231266 is about 107.1808743819.

Adding to 1231266 its reverse (6621321), we get a palindrome (7852587).

The spelling of 1231266 in words is "one million, two hundred thirty-one thousand, two hundred sixty-six".