1211144 has 16 divisors (see below), whose sum is σ = 2477520. Its totient is φ = 550480.

The previous prime is 1211141. The next prime is 1211167. The reversal of 1211144 is 4411121.

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 (1211141) 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, 6794 + ... + 6969.

It is an arithmetic number, because the mean of its divisors is an integer number (154845).

2^1211144 is an apocalyptic number.

It is an amenable number.

1211144 is an abundant number, since it is smaller than the sum of its proper divisors (1266376).

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

1211144 is a wasteful number, since it uses less digits than its factorization.

1211144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13780 (or 13776 counting only the distinct ones).

The product of its digits is 32, while the sum is 14.

The square root of 1211144 is about 1100.5198771490. The cubic root of 1211144 is about 106.5937957146.

Adding to 1211144 its reverse (4411121), we get a palindrome (5622265).

The spelling of 1211144 in words is "one million, two hundred eleven thousand, one hundred forty-four".