1143111408 has 40 divisors (see below), whose sum is σ = 3081433728. Its totient is φ = 364469952.

The previous prime is 1143111377. The next prime is 1143111419. The reversal of 1143111408 is 8041113411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516610 + ... + 518817.

Almost surely, 2^1143111408 is an apocalyptic number.

It is an amenable number.

1143111408 is an abundant number, since it is smaller than the sum of its proper divisors (1938322320).

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

1143111408 is a wasteful number, since it uses less digits than its factorization.

1143111408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035461 (or 1035455 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 1143111408 is about 33809.9306121737. The cubic root of 1143111408 is about 1045.5934475574.

Adding to 1143111408 its reverse (8041113411), we get a palindrome (9184224819).

The spelling of 1143111408 in words is "one billion, one hundred forty-three million, one hundred eleven thousand, four hundred eight".