4275221 has 4 divisors (see below), whose sum is σ = 4316832. Its totient is φ = 4233612.

The previous prime is 4275181. The next prime is 4275233. The reversal of 4275221 is 1225724.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4275221 - 2⁶ = 4275157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4275251) 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, 20651 + ... + 20856.

It is an arithmetic number, because the mean of its divisors is an integer number (1079208).

Almost surely, 2^4275221 is an apocalyptic number.

It is an amenable number.

4275221 is a deficient number, since it is larger than the sum of its proper divisors (41611).

4275221 is a wasteful number, since it uses less digits than its factorization.

4275221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41610.

The product of its digits is 1120, while the sum is 23.

The square root of 4275221 is about 2067.6607555399. The cubic root of 4275221 is about 162.3003749871.

The spelling of 4275221 in words is "four million, two hundred seventy-five thousand, two hundred twenty-one".