2184881213 has 4 divisors (see below), whose sum is σ = 2235692448. Its totient is φ = 2134069980.

The previous prime is 2184881197. The next prime is 2184881219. The reversal of 2184881213 is 3121884812.

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 2184881213 - 2⁴ = 2184881197 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 (2184881219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25405553 + ... + 25405638.

It is an arithmetic number, because the mean of its divisors is an integer number (558923112).

Almost surely, 2^2184881213 is an apocalyptic number.

It is an amenable number.

2184881213 is a deficient number, since it is larger than the sum of its proper divisors (50811235).

2184881213 is an equidigital number, since it uses as much as digits as its factorization.

2184881213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50811234.

The product of its digits is 24576, while the sum is 38.

The square root of 2184881213 is about 46742.7129400937. The cubic root of 2184881213 is about 1297.6052981864.

The spelling of 2184881213 in words is "two billion, one hundred eighty-four million, eight hundred eighty-one thousand, two hundred thirteen".