1143224355 has 64 divisors (see below), whose sum is σ = 2323980288. Its totient is φ = 466836480.

The previous prime is 1143224351. The next prime is 1143224377. The reversal of 1143224355 is 5534223411.

It is not a de Polignac number, because 1143224355 - 2² = 1143224351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143224351) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28807 + ... + 55823.

It is an arithmetic number, because the mean of its divisors is an integer number (36312192).

Almost surely, 2^1143224355 is an apocalyptic number.

1143224355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143224355 is an abundant number, since it is smaller than the sum of its proper divisors (1180755933).

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

1143224355 is a wasteful number, since it uses less digits than its factorization.

1143224355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27076.

The product of its digits is 14400, while the sum is 30.

The square root of 1143224355 is about 33811.6008937761. The cubic root of 1143224355 is about 1045.6278836159.

Adding to 1143224355 its reverse (5534223411), we get a palindrome (6677447766).

The spelling of 1143224355 in words is "one billion, one hundred forty-three million, two hundred twenty-four thousand, three hundred fifty-five".