1814091089 has 4 divisors (see below), whose sum is σ = 1815238656. Its totient is φ = 1812943524.

The previous prime is 1814091067. The next prime is 1814091133. The reversal of 1814091089 is 9801904181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1814091089 - 2⁸ = 1814090833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1814093089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571409 + ... + 574574.

It is an arithmetic number, because the mean of its divisors is an integer number (453809664).

Almost surely, 2^1814091089 is an apocalyptic number.

It is an amenable number.

1814091089 is a deficient number, since it is larger than the sum of its proper divisors (1147567).

1814091089 is a wasteful number, since it uses less digits than its factorization.

1814091089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147566.

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 1814091089 is about 42592.1482083259. The cubic root of 1814091089 is about 1219.6064055510.

The spelling of 1814091089 in words is "one billion, eight hundred fourteen million, ninety-one thousand, eighty-nine".