1227144 has 16 divisors (see below), whose sum is σ = 3067920. Its totient is φ = 409040.

The previous prime is 1227143. The next prime is 1227151. The reversal of 1227144 is 4417221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1227144.

It is not an unprimeable number, because it can be changed into a prime (1227143) 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, 25542 + ... + 25589.

It is an arithmetic number, because the mean of its divisors is an integer number (191745).

2^1227144 is an apocalyptic number.

It is an amenable number.

1227144 is an abundant number, since it is smaller than the sum of its proper divisors (1840776).

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

1227144 is a wasteful number, since it uses less digits than its factorization.

1227144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51140 (or 51136 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 1227144 is about 1107.7653181067. The cubic root of 1227144 is about 107.0611348893.

The spelling of 1227144 in words is "one million, two hundred twenty-seven thousand, one hundred forty-four".