1091143093 has 8 divisors (see below), whose sum is σ = 1106174880. Its totient is φ = 1076201040.

The previous prime is 1091143091. The next prime is 1091143129. The reversal of 1091143093 is 3903411901.

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

It is a cyclic number.

It is not a de Polignac number, because 1091143093 - 2¹ = 1091143091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091143091) 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, 2238 + ... + 46768.

It is an arithmetic number, because the mean of its divisors is an integer number (138271860).

Almost surely, 2^1091143093 is an apocalyptic number.

It is an amenable number.

1091143093 is a deficient number, since it is larger than the sum of its proper divisors (15031787).

1091143093 is a wasteful number, since it uses less digits than its factorization.

1091143093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44867.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1091143093 is about 33032.4551464162. The cubic root of 1091143093 is about 1029.5020979333.

Adding to 1091143093 its reverse (3903411901), we get a palindrome (4994554994).

The spelling of 1091143093 in words is "one billion, ninety-one million, one hundred forty-three thousand, ninety-three".