2124533209 has 4 divisors (see below), whose sum is σ = 2128153104. Its totient is φ = 2120913316.

The previous prime is 2124533171. The next prime is 2124533233. The reversal of 2124533209 is 9023354212.

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 2124533209 - 2¹¹ = 2124531161 is a prime.

It is a super-2 number, since 2×2124533209² = 9027282712287675362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2124533309) 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, 1809067 + ... + 1810240.

It is an arithmetic number, because the mean of its divisors is an integer number (532038276).

Almost surely, 2^2124533209 is an apocalyptic number.

It is an amenable number.

2124533209 is a deficient number, since it is larger than the sum of its proper divisors (3619895).

2124533209 is an equidigital number, since it uses as much as digits as its factorization.

2124533209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619894.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2124533209 is about 46092.6589491212. The cubic root of 2124533209 is about 1285.5466510938.

The spelling of 2124533209 in words is "two billion, one hundred twenty-four million, five hundred thirty-three thousand, two hundred nine".