15214222 has 8 divisors (see below), whose sum is σ = 23134176. Its totient is φ = 7502832.

The previous prime is 15214189. The next prime is 15214249. The reversal of 15214222 is 22241251.

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

It is a self number, because there is not a number n which added to its sum of digits gives 15214222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51958 + ... + 52249.

It is an arithmetic number, because the mean of its divisors is an integer number (2891772).

Almost surely, 2^15214222 is an apocalyptic number.

15214222 is a deficient number, since it is larger than the sum of its proper divisors (7919954).

15214222 is a wasteful number, since it uses less digits than its factorization.

15214222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104282.

The product of its digits is 320, while the sum is 19.

The square root of 15214222 is about 3900.5412444942. The cubic root of 15214222 is about 247.7896998843.

Adding to 15214222 its reverse (22241251), we get a palindrome (37455473).

The spelling of 15214222 in words is "fifteen million, two hundred fourteen thousand, two hundred twenty-two".