2152811 has 2 divisors, whose sum is σ = 2152812. Its totient is φ = 2152810.

The previous prime is 2152793. The next prime is 2152817. The reversal of 2152811 is 1182512.

It is a happy number.

2152811 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 a de Polignac number, because none of the positive numbers 2^k-2152811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2152817) 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, 1076405 + 1076406.

It is an arithmetic number, because the mean of its divisors is an integer number (1076406).

2^2152811 is an apocalyptic number.

2152811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152811 is an equidigital number, since it uses as much as digits as its factorization.

2152811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 20.

The square root of 2152811 is about 1467.2460598005. The cubic root of 2152811 is about 129.1225124604.

Subtracting from 2152811 its reverse (1182512), we obtain a cube (970299 = 99³).

The spelling of 2152811 in words is "two million, one hundred fifty-two thousand, eight hundred eleven".