1143552 has 36 divisors (see below), whose sum is σ = 3045560. Its totient is φ = 380928.

The previous prime is 1143551. The next prime is 1143563. The reversal of 1143552 is 2553411.

It is a super-2 number, since 2×1143552² = 2615422353408, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1143551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24 + ... + 1512.

2^1143552 is an apocalyptic number.

1143552 is a gapful number since it is divisible by the number (12) 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 1143552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522780).

1143552 is an abundant number, since it is smaller than the sum of its proper divisors (1902008).

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

1143552 is an equidigital number, since it uses as much as digits as its factorization.

1143552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1494 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 1143552 is about 1069.3699079364. The cubic root of 1143552 is about 104.5727765447.

Adding to 1143552 its reverse (2553411), we get a palindrome (3696963).

The spelling of 1143552 in words is "one million, one hundred forty-three thousand, five hundred fifty-two".