1144427 has 16 divisors (see below), whose sum is σ = 1305600. Its totient is φ = 997920.

The previous prime is 1144417. The next prime is 1144439. The reversal of 1144427 is 7244411.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144427 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17048 + ... + 17114.

It is an arithmetic number, because the mean of its divisors is an integer number (81600).

2^1144427 is an apocalyptic number.

1144427 is a deficient number, since it is larger than the sum of its proper divisors (161173).

1144427 is a wasteful number, since it uses less digits than its factorization.

1144427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146.

The product of its digits is 896, while the sum is 23.

The square root of 1144427 is about 1069.7789491292. The cubic root of 1144427 is about 104.5994413725.

Adding to 1144427 its reverse (7244411), we get a palindrome (8388838).

The spelling of 1144427 in words is "one million, one hundred forty-four thousand, four hundred twenty-seven".