1201144 has 32 divisors (see below), whose sum is σ = 2613600. Its totient is φ = 506880.

The previous prime is 1201141. The next prime is 1201153. The reversal of 1201144 is 4411021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4864 + ... + 5104.

It is an arithmetic number, because the mean of its divisors is an integer number (81675).

2^1201144 is an apocalyptic number.

1201144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306800).

1201144 is an abundant number, since it is smaller than the sum of its proper divisors (1412456).

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

1201144 is a wasteful number, since it uses less digits than its factorization.

1201144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1201144 is about 1095.9671527925. The cubic root of 1201144 is about 106.2996151208.

Adding to 1201144 its reverse (4411021), we get a palindrome (5612165).

The spelling of 1201144 in words is "one million, two hundred one thousand, one hundred forty-four".