1143331149 has 8 divisors (see below), whose sum is σ = 1524734080. Its totient is φ = 762074496.

The previous prime is 1143331139. The next prime is 1143331151. The reversal of 1143331149 is 9411333411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1143331149 - 2⁹ = 1143330637 is a prime.

It is a super-2 number, since 2×1143331149² = 2614412232547320402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143331129) 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, 16804 + ... + 50685.

It is an arithmetic number, because the mean of its divisors is an integer number (190591760).

Almost surely, 2^1143331149 is an apocalyptic number.

It is an amenable number.

1143331149 is a deficient number, since it is larger than the sum of its proper divisors (381402931).

1143331149 is an equidigital number, since it uses as much as digits as its factorization.

1143331149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73139.

The product of its digits is 3888, while the sum is 30.

The square root of 1143331149 is about 33813.1801077627. The cubic root of 1143331149 is about 1045.6604416193.

The spelling of 1143331149 in words is "one billion, one hundred forty-three million, three hundred thirty-one thousand, one hundred forty-nine".