1140091499 has 4 divisors (see below), whose sum is σ = 1142963664. Its totient is φ = 1137219336.

The previous prime is 1140091489. The next prime is 1140091571. The reversal of 1140091499 is 9941900411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9941900411 = 7877 ⋅1262143.

It is a cyclic number.

It is not a de Polignac number, because 1140091499 - 2⁸ = 1140091243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140091489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435487 + ... + 1436280.

It is an arithmetic number, because the mean of its divisors is an integer number (285740916).

Almost surely, 2^1140091499 is an apocalyptic number.

1140091499 is a deficient number, since it is larger than the sum of its proper divisors (2872165).

1140091499 is an equidigital number, since it uses as much as digits as its factorization.

1140091499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872164.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1140091499 is about 33765.2409883300. The cubic root of 1140091499 is about 1044.6718745760.

The spelling of 1140091499 in words is "one billion, one hundred forty million, ninety-one thousand, four hundred ninety-nine".