1143605352 has 16 divisors (see below), whose sum is σ = 2859013440. Its totient is φ = 381201776.

The previous prime is 1143605347. The next prime is 1143605377. The reversal of 1143605352 is 2535063411.

It is a super-2 number, since 2×1143605352² = 2615666402246087808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23825088 + ... + 23825135.

It is an arithmetic number, because the mean of its divisors is an integer number (178688340).

Almost surely, 2^1143605352 is an apocalyptic number.

1143605352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143605352 is an abundant number, since it is smaller than the sum of its proper divisors (1715408088).

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

1143605352 is a wasteful number, since it uses less digits than its factorization.

1143605352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47650232 (or 47650228 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1143605352 is about 33817.2345409852. The cubic root of 1143605352 is about 1045.7440278757.

Adding to 1143605352 its reverse (2535063411), we get a palindrome (3678668763).

The spelling of 1143605352 in words is "one billion, one hundred forty-three million, six hundred five thousand, three hundred fifty-two".