2227851 has 16 divisors (see below), whose sum is σ = 3335200. Its totient is φ = 1469664.

The previous prime is 2227843. The next prime is 2227853. The reversal of 2227851 is 1587222.

It is not a de Polignac number, because 2227851 - 2³ = 2227843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

2227851 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2227853) 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 in 15 ways as a sum of consecutive naturals, for example, 2565 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (208450).

2^2227851 is an apocalyptic number.

2227851 is a deficient number, since it is larger than the sum of its proper divisors (1107349).

2227851 is a wasteful number, since it uses less digits than its factorization.

2227851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 869 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 2227851 is about 1492.5987404524. The cubic root of 2227851 is about 130.6056747431.

The spelling of 2227851 in words is "two million, two hundred twenty-seven thousand, eight hundred fifty-one".