1230089005 has 4 divisors (see below), whose sum is σ = 1476106812. Its totient is φ = 984071200.

The previous prime is 1230088997. The next prime is 1230089023. The reversal of 1230089005 is 5009800321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5009800321 = 26479 ⋅189199.

It can be written as a sum of positive squares in 2 ways, for example, as 674025444 + 556063561 = 25962^2 + 23581^2 .

It is not a de Polignac number, because 1230089005 - 2³ = 1230088997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123008896 + ... + 123008905.

It is an arithmetic number, because the mean of its divisors is an integer number (369026703).

Almost surely, 2^1230089005 is an apocalyptic number.

It is an amenable number.

1230089005 is a deficient number, since it is larger than the sum of its proper divisors (246017807).

1230089005 is an equidigital number, since it uses as much as digits as its factorization.

1230089005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246017806.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1230089005 is about 35072.6247235647. The cubic root of 1230089005 is about 1071.4671128697.

Adding to 1230089005 its reverse (5009800321), we get a palindrome (6239889326).

The spelling of 1230089005 in words is "one billion, two hundred thirty million, eighty-nine thousand, five".