2155079 has 2 divisors, whose sum is σ = 2155080. Its totient is φ = 2155078.

The previous prime is 2155067. The next prime is 2155103. The reversal of 2155079 is 9705512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2155079 - 2¹⁶ = 2089543 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 (2155009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077539 + 1077540.

It is an arithmetic number, because the mean of its divisors is an integer number (1077540).

2^2155079 is an apocalyptic number.

2155079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155079 is an equidigital number, since it uses as much as digits as its factorization.

2155079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2155079 is about 1468.0187328505. The cubic root of 2155079 is about 129.1678403408.

The spelling of 2155079 in words is "two million, one hundred fifty-five thousand, seventy-nine".