1140001091 has 2 divisors, whose sum is σ = 1140001092. Its totient is φ = 1140001090.

The previous prime is 1140000997. The next prime is 1140001129. The reversal of 1140001091 is 1901000411.

It is a strong prime.

It is an emirp because it is prime and its reverse (1901000411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1140001091 - 2¹⁰ = 1140000067 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1140001391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570000545 + 570000546.

It is an arithmetic number, because the mean of its divisors is an integer number (570000546).

Almost surely, 2^1140001091 is an apocalyptic number.

1140001091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140001091 is an equidigital number, since it uses as much as digits as its factorization.

1140001091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1140001091 is about 33763.9021885800. The cubic root of 1140001091 is about 1044.6442600697.

The spelling of 1140001091 in words is "one billion, one hundred forty million, one thousand, ninety-one".