4159221 has 8 divisors (see below), whose sum is σ = 6049824. Its totient is φ = 2520720.

The previous prime is 4159219. The next prime is 4159223. The reversal of 4159221 is 1229514.

It is an interprime number because it is at equal distance from previous prime (4159219) and next prime (4159223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4159221 - 2¹ = 4159219 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 4159191 and 4159200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4159223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62986 + ... + 63051.

It is an arithmetic number, because the mean of its divisors is an integer number (756228).

Almost surely, 2^4159221 is an apocalyptic number.

It is an amenable number.

4159221 is a deficient number, since it is larger than the sum of its proper divisors (1890603).

4159221 is a wasteful number, since it uses less digits than its factorization.

4159221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126051.

The product of its digits is 720, while the sum is 24.

The square root of 4159221 is about 2039.4168284095. The cubic root of 4159221 is about 160.8189907894.

The spelling of 4159221 in words is "four million, one hundred fifty-nine thousand, two hundred twenty-one".