1214589009 has 4 divisors (see below), whose sum is σ = 1619452016. Its totient is φ = 809726004.

The previous prime is 1214589001. The next prime is 1214589023. The reversal of 1214589009 is 9009854121.

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 not a de Polignac number, because 1214589009 - 2³ = 1214589001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1214589001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202431499 + ... + 202431504.

It is an arithmetic number, because the mean of its divisors is an integer number (404863004).

Almost surely, 2^1214589009 is an apocalyptic number.

It is an amenable number.

1214589009 is a deficient number, since it is larger than the sum of its proper divisors (404863007).

1214589009 is an equidigital number, since it uses as much as digits as its factorization.

1214589009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404863006.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1214589009 is about 34850.9542050142. The cubic root of 1214589009 is about 1066.9476608122.

The spelling of 1214589009 in words is "one billion, two hundred fourteen million, five hundred eighty-nine thousand, nine".