2147279 has 2 divisors, whose sum is σ = 2147280. Its totient is φ = 2147278.

The previous prime is 2147273. The next prime is 2147281. The reversal of 2147279 is 9727412.

2147279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2147279 - 2⁴ = 2147263 is a prime.

It is a super-2 number, since 2×2147279² = 9221614207682, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2147281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2147273) 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 as a sum of consecutive naturals, namely, 1073639 + 1073640.

It is an arithmetic number, because the mean of its divisors is an integer number (1073640).

2^2147279 is an apocalyptic number.

2147279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147279 is an equidigital number, since it uses as much as digits as its factorization.

2147279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 2147279 is about 1465.3596828083. The cubic root of 2147279 is about 129.0118171175.

The spelling of 2147279 in words is "two million, one hundred forty-seven thousand, two hundred seventy-nine".