4227139 has 16 divisors (see below), whose sum is σ = 5228800. Its totient is φ = 3335904.

The previous prime is 4227137. The next prime is 4227149. The reversal of 4227139 is 9317224.

It is a cyclic number.

It is not a de Polignac number, because 4227139 - 2¹ = 4227137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4227137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4492 + ... + 5350.

It is an arithmetic number, because the mean of its divisors is an integer number (326800).

Almost surely, 2^4227139 is an apocalyptic number.

4227139 is a deficient number, since it is larger than the sum of its proper divisors (1001661).

4227139 is a wasteful number, since it uses less digits than its factorization.

4227139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922.

The product of its digits is 3024, while the sum is 28.

The square root of 4227139 is about 2056.0007295719. Note that the first 3 decimals coincide. The cubic root of 4227139 is about 161.6896333735.

The spelling of 4227139 in words is "four million, two hundred twenty-seven thousand, one hundred thirty-nine".