1143341155 has 16 divisors (see below), whose sum is σ = 1561814784. Its totient is φ = 795366880.

The previous prime is 1143341149. The next prime is 1143341159. The reversal of 1143341155 is 5511433411.

It is not a de Polignac number, because 1143341155 - 2⁵ = 1143341123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143341159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450649 + ... + 453178.

It is an arithmetic number, because the mean of its divisors is an integer number (97613424).

Almost surely, 2^1143341155 is an apocalyptic number.

1143341155 is a deficient number, since it is larger than the sum of its proper divisors (418473629).

1143341155 is a wasteful number, since it uses less digits than its factorization.

1143341155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903866.

The product of its digits is 3600, while the sum is 28.

The square root of 1143341155 is about 33813.3280674943. The cubic root of 1143341155 is about 1045.6634920180.

Adding to 1143341155 its reverse (5511433411), we get a palindrome (6654774566).

The spelling of 1143341155 in words is "one billion, one hundred forty-three million, three hundred forty-one thousand, one hundred fifty-five".