2102279 has 2 divisors, whose sum is σ = 2102280. Its totient is φ = 2102278.

The previous prime is 2102273. The next prime is 2102291. The reversal of 2102279 is 9722012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102279 - 2¹² = 2098183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051139 + 1051140.

It is an arithmetic number, because the mean of its divisors is an integer number (1051140).

2^2102279 is an apocalyptic number.

2102279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102279 is an equidigital number, since it uses as much as digits as its factorization.

2102279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2102279 is about 1449.9237911008. The cubic root of 2102279 is about 128.1042241943.

The spelling of 2102279 in words is "two million, one hundred two thousand, two hundred seventy-nine".