1143422166 has 32 divisors (see below), whose sum is σ = 2484864000. Its totient is φ = 349431840.

The previous prime is 1143422153. The next prime is 1143422167. The reversal of 1143422166 is 6612243411.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143422167) 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, 158241 + ... + 165308.

It is an arithmetic number, because the mean of its divisors is an integer number (77652000).

Almost surely, 2^1143422166 is an apocalyptic number.

1143422166 is an abundant number, since it is smaller than the sum of its proper divisors (1341441834).

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

1143422166 is a wasteful number, since it uses less digits than its factorization.

1143422166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323604.

The product of its digits is 6912, while the sum is 30.

The square root of 1143422166 is about 33814.5259614858. The cubic root of 1143422166 is about 1045.6881881303.

Adding to 1143422166 its reverse (6612243411), we get a palindrome (7755665577).

The spelling of 1143422166 in words is "one billion, one hundred forty-three million, four hundred twenty-two thousand, one hundred sixty-six".