2851187 has 2 divisors, whose sum is σ = 2851188. Its totient is φ = 2851186.

The previous prime is 2851171. The next prime is 2851231. The reversal of 2851187 is 7811582.

It is a happy number.

2851187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2851187 - 2⁴ = 2851171 is a prime.

It is not a weakly prime, because it can be changed into another prime (2851787) 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, 1425593 + 1425594.

It is an arithmetic number, because the mean of its divisors is an integer number (1425594).

2^2851187 is an apocalyptic number.

2851187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2851187 is an equidigital number, since it uses as much as digits as its factorization.

2851187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 32.

The square root of 2851187 is about 1688.5458240747. The cubic root of 2851187 is about 141.7996745443.

It can be divided in two parts, 28 and 51187, that added together give a palindrome (51215).

The spelling of 2851187 in words is "two million, eight hundred fifty-one thousand, one hundred eighty-seven".