1233144 has 80 divisors (see below), whose sum is σ = 3789720. Its totient is φ = 371520.

The previous prime is 1233143. The next prime is 1233179. The reversal of 1233144 is 4413321.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7042 + ... + 7214.

2^1233144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1233144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1894860).

1233144 is an abundant number, since it is smaller than the sum of its proper divisors (2556576).

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

1233144 is a wasteful number, since it uses less digits than its factorization.

1233144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 189 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1233144 is about 1110.4701706935. The cubic root of 1233144 is about 107.2353395776.

Adding to 1233144 its reverse (4413321), we get a palindrome (5646465).

The spelling of 1233144 in words is "one million, two hundred thirty-three thousand, one hundred forty-four".