1813459089 has 8 divisors (see below), whose sum is σ = 2603941312. Its totient is φ = 1115974800.

The previous prime is 1813459061. The next prime is 1813459093. The reversal of 1813459089 is 9809543181.

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

It is not a de Polignac number, because 1813459089 - 2⁷ = 1813458961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1813459099) 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 7 ways as a sum of consecutive naturals, for example, 23249437 + ... + 23249514.

It is an arithmetic number, because the mean of its divisors is an integer number (325492664).

Almost surely, 2^1813459089 is an apocalyptic number.

It is an amenable number.

1813459089 is a deficient number, since it is larger than the sum of its proper divisors (790482223).

1813459089 is a wasteful number, since it uses less digits than its factorization.

1813459089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46498967.

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 1813459089 is about 42584.7283541882. The cubic root of 1813459089 is about 1219.4647587174.

The spelling of 1813459089 in words is "one billion, eight hundred thirteen million, four hundred fifty-nine thousand, eighty-nine".