4150221 has 8 divisors (see below), whose sum is σ = 5550720. Its totient is φ = 2758272.

The previous prime is 4150213. The next prime is 4150243. The reversal of 4150221 is 1220514.

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

It is not a de Polignac number, because 4150221 - 2³ = 4150213 is a prime.

It is a Curzon number.

4150221 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4150221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4100221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901 + ... + 3018.

It is an arithmetic number, because the mean of its divisors is an integer number (693840).

Almost surely, 2^4150221 is an apocalyptic number.

It is an amenable number.

4150221 is a deficient number, since it is larger than the sum of its proper divisors (1400499).

4150221 is a wasteful number, since it uses less digits than its factorization.

4150221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 4150221 is about 2037.2091203409. The cubic root of 4150221 is about 160.7029100661.

Adding to 4150221 its reverse (1220514), we get a palindrome (5370735).

It can be divided in two parts, 4150 and 221, that added together give a triangular number (4371 = T₉₃).

The spelling of 4150221 in words is "four million, one hundred fifty thousand, two hundred twenty-one".