2011147 has 2 divisors, whose sum is σ = 2011148. Its totient is φ = 2011146.

The previous prime is 2011129. The next prime is 2011171. The reversal of 2011147 is 7411102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011147 - 2⁷ = 2011019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011147.

It is not a weakly prime, because it can be changed into another prime (2011127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005573 + 1005574.

It is an arithmetic number, because the mean of its divisors is an integer number (1005574).

2^2011147 is an apocalyptic number.

2011147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011147 is an equidigital number, since it uses as much as digits as its factorization.

2011147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 2011147 is about 1418.1491458940. The cubic root of 2011147 is about 126.2257437960.

Adding to 2011147 its reverse (7411102), we get a palindrome (9422249).

The spelling of 2011147 in words is "two million, eleven thousand, one hundred forty-seven".