2061187 has 2 divisors, whose sum is σ = 2061188. Its totient is φ = 2061186.

The previous prime is 2061181. The next prime is 2061197. The reversal of 2061187 is 7811602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2061187 - 2³ = 2061179 is a prime.

2061187 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2061181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030593 + 1030594.

It is an arithmetic number, because the mean of its divisors is an integer number (1030594).

2^2061187 is an apocalyptic number.

2061187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061187 is an equidigital number, since it uses as much as digits as its factorization.

2061187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2061187 is about 1435.6834609342. The cubic root of 2061187 is about 127.2640670824.

Adding to 2061187 its reverse (7811602), we get a palindrome (9872789).

The spelling of 2061187 in words is "two million, sixty-one thousand, one hundred eighty-seven".