5142221 has 8 divisors (see below), whose sum is σ = 5915520. Its totient is φ = 4378608.

The previous prime is 5142199. The next prime is 5142227. The reversal of 5142221 is 1222415.

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

It is a cyclic number.

It is not a de Polignac number, because 5142221 - 2²² = 947917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5142221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142227) 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, 1241 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (739440).

Almost surely, 2^5142221 is an apocalyptic number.

It is an amenable number.

5142221 is a deficient number, since it is larger than the sum of its proper divisors (773299).

5142221 is a wasteful number, since it uses less digits than its factorization.

5142221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843.

The product of its digits is 160, while the sum is 17.

The square root of 5142221 is about 2267.6465774013. The cubic root of 5142221 is about 172.6037575039.

Adding to 5142221 its reverse (1222415), we get a palindrome (6364636).

The spelling of 5142221 in words is "five million, one hundred forty-two thousand, two hundred twenty-one".