2179087243 has 2 divisors, whose sum is σ = 2179087244. Its totient is φ = 2179087242.

The previous prime is 2179087223. The next prime is 2179087277. The reversal of 2179087243 is 3427809712.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2179087243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2179087243.

It is not a weakly prime, because it can be changed into another prime (2179087223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089543621 + 1089543622.

It is an arithmetic number, because the mean of its divisors is an integer number (1089543622).

Almost surely, 2^2179087243 is an apocalyptic number.

2179087243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2179087243 is an equidigital number, since it uses as much as digits as its factorization.

2179087243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2179087243 is about 46680.6945428193. The cubic root of 2179087243 is about 1296.4572660167.

The spelling of 2179087243 in words is "two billion, one hundred seventy-nine million, eighty-seven thousand, two hundred forty-three".