2228147 has 4 divisors (see below), whose sum is σ = 2264736. Its totient is φ = 2191560.

The previous prime is 2228143. The next prime is 2228153. The reversal of 2228147 is 7418222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2228147 - 2² = 2228143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2228143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18203 + ... + 18324.

It is an arithmetic number, because the mean of its divisors is an integer number (566184).

2^2228147 is an apocalyptic number.

2228147 is a deficient number, since it is larger than the sum of its proper divisors (36589).

2228147 is an equidigital number, since it uses as much as digits as its factorization.

2228147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36588.

The product of its digits is 1792, while the sum is 26.

The square root of 2228147 is about 1492.6978930782. The cubic root of 2228147 is about 130.6114587277.

The spelling of 2228147 in words is "two million, two hundred twenty-eight thousand, one hundred forty-seven".