1143164216 has 32 divisors (see below), whose sum is σ = 2245224960. Its totient is φ = 544628832.

The previous prime is 1143164213. The next prime is 1143164219. The reversal of 1143164216 is 6124613411.

It is an interprime number because it is at equal distance from previous prime (1143164213) and next prime (1143164219).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143164213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36581 + ... + 60203.

It is an arithmetic number, because the mean of its divisors is an integer number (70163280).

Almost surely, 2^1143164216 is an apocalyptic number.

It is an amenable number.

1143164216 is a deficient number, since it is larger than the sum of its proper divisors (1102060744).

1143164216 is a wasteful number, since it uses less digits than its factorization.

1143164216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23915 (or 23911 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 1143164216 is about 33810.7115571382. The cubic root of 1143164216 is about 1045.6095483061.

Adding to 1143164216 its reverse (6124613411), we get a palindrome (7267777627).

The spelling of 1143164216 in words is "one billion, one hundred forty-three million, one hundred sixty-four thousand, two hundred sixteen".