1143120091 has 8 divisors (see below), whose sum is σ = 1154208960. Its totient is φ = 1132048512.

The previous prime is 1143120089. The next prime is 1143120101. The reversal of 1143120091 is 1900213411.

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 1143120091 - 2¹ = 1143120089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143120061) 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, 157245 + ... + 164353.

It is an arithmetic number, because the mean of its divisors is an integer number (144276120).

Almost surely, 2^1143120091 is an apocalyptic number.

1143120091 is a deficient number, since it is larger than the sum of its proper divisors (11088869).

1143120091 is a wasteful number, since it uses less digits than its factorization.

1143120091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1143120091 is about 33810.0590209482. The cubic root of 1143120091 is about 1045.5960949707.

The spelling of 1143120091 in words is "one billion, one hundred forty-three million, one hundred twenty thousand, ninety-one".