1200144 has 40 divisors (see below), whose sum is σ = 3383712. Its totient is φ = 363520.

The previous prime is 1200139. The next prime is 1200161. The reversal of 1200144 is 4410021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609 + ... + 1664.

2^1200144 is an apocalyptic number.

It is an amenable number.

1200144 is an abundant number, since it is smaller than the sum of its proper divisors (2183568).

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

1200144 is a wasteful number, since it uses less digits than its factorization.

1200144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1200144 is about 1095.5108397455. The cubic root of 1200144 is about 106.2701073825.

Adding to 1200144 its reverse (4410021), we get a palindrome (5610165).

The spelling of 1200144 in words is "one million, two hundred thousand, one hundred forty-four".