2213149789 has 4 divisors (see below), whose sum is σ = 2213244000. Its totient is φ = 2213055580.

The previous prime is 2213149753. The next prime is 2213149853. The reversal of 2213149789 is 9879413122.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2213149789 - 2⁹ = 2213149277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213149889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19962 + ... + 69460.

It is an arithmetic number, because the mean of its divisors is an integer number (553311000).

Almost surely, 2^2213149789 is an apocalyptic number.

It is an amenable number.

2213149789 is a deficient number, since it is larger than the sum of its proper divisors (94211).

2213149789 is an equidigital number, since it uses as much as digits as its factorization.

2213149789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94210.

The product of its digits is 217728, while the sum is 46.

The square root of 2213149789 is about 47044.1259776393. The cubic root of 2213149789 is about 1303.1775894132.

The spelling of 2213149789 in words is "two billion, two hundred thirteen million, one hundred forty-nine thousand, seven hundred eighty-nine".