2227139 has 4 divisors (see below), whose sum is σ = 2254056. Its totient is φ = 2200224.

The previous prime is 2227129. The next prime is 2227163. The reversal of 2227139 is 9317222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9317222 = 2 ⋅4658611.

It is a cyclic number.

It is not a de Polignac number, because 2227139 - 2¹² = 2223043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2227109) 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 3 ways as a sum of consecutive naturals, for example, 13334 + ... + 13499.

It is an arithmetic number, because the mean of its divisors is an integer number (563514).

2^2227139 is an apocalyptic number.

2227139 is a deficient number, since it is larger than the sum of its proper divisors (26917).

2227139 is an equidigital number, since it uses as much as digits as its factorization.

2227139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26916.

The product of its digits is 1512, while the sum is 26.

The square root of 2227139 is about 1492.3602112091. The cubic root of 2227139 is about 130.5917598166.

The spelling of 2227139 in words is "two million, two hundred twenty-seven thousand, one hundred thirty-nine".