4223155 has 4 divisors (see below), whose sum is σ = 5067792. Its totient is φ = 3378520.

The previous prime is 4223117. The next prime is 4223171. The reversal of 4223155 is 5513224.

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

It is not a de Polignac number, because 4223155 - 2⁷ = 4223027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422311 + ... + 422320.

It is an arithmetic number, because the mean of its divisors is an integer number (1266948).

Almost surely, 2^4223155 is an apocalyptic number.

4223155 is a deficient number, since it is larger than the sum of its proper divisors (844637).

4223155 is an equidigital number, since it uses as much as digits as its factorization.

4223155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844636.

The product of its digits is 1200, while the sum is 22.

The square root of 4223155 is about 2055.0316299269. The cubic root of 4223155 is about 161.6388209147.

Adding to 4223155 its reverse (5513224), we get a palindrome (9736379).

The spelling of 4223155 in words is "four million, two hundred twenty-three thousand, one hundred fifty-five".