1143533466 has 48 divisors (see below), whose sum is σ = 2518161984. Its totient is φ = 374974272.

The previous prime is 1143533399. The next prime is 1143533471. The reversal of 1143533466 is 6643353411.

1143533466 is a `hidden beast` number, since 1 + 143 + 53 + 3 + 466 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1143533466.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 639025 + ... + 640811.

It is an arithmetic number, because the mean of its divisors is an integer number (52461708).

Almost surely, 2^1143533466 is an apocalyptic number.

1143533466 is an abundant number, since it is smaller than the sum of its proper divisors (1374628518).

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

1143533466 is a wasteful number, since it uses less digits than its factorization.

1143533466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355 (or 2352 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 1143533466 is about 33816.1716638652. The cubic root of 1143533466 is about 1045.7221159080.

Adding to 1143533466 its reverse (6643353411), we get a palindrome (7786886877).

The spelling of 1143533466 in words is "one billion, one hundred forty-three million, five hundred thirty-three thousand, four hundred sixty-six".