1143200 has 36 divisors (see below), whose sum is σ = 2792790. Its totient is φ = 456960.

The previous prime is 1143193. The next prime is 1143217. The reversal of 1143200 is 23411.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 559504 + 583696 = 748^2 + 764^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86 + ... + 1514.

2^1143200 is an apocalyptic number.

1143200 is a gapful number since it is divisible by the number (10) 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 1143200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1396395).

1143200 is an abundant number, since it is smaller than the sum of its proper divisors (1649590).

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

1143200 is a wasteful number, since it uses less digits than its factorization.

1143200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1143200 is about 1069.2053123699. The cubic root of 1143200 is about 104.5620458288.

Adding to 1143200 its reverse (23411), we get a palindrome (1166611).

The spelling of 1143200 in words is "one million, one hundred forty-three thousand, two hundred".