15214223 has 4 divisors (see below), whose sum is σ = 15356520. Its totient is φ = 15071928.

The previous prime is 15214189. The next prime is 15214249. The reversal of 15214223 is 32241251.

15214223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32241251 = 7 ⋅4605893.

It is a cyclic number.

It is not a de Polignac number, because 15214223 - 2²⁰ = 14165647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15214195 and 15214204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15214253) 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, 70988 + ... + 71201.

It is an arithmetic number, because the mean of its divisors is an integer number (3839130).

Almost surely, 2^15214223 is an apocalyptic number.

15214223 is a deficient number, since it is larger than the sum of its proper divisors (142297).

15214223 is a wasteful number, since it uses less digits than its factorization.

15214223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142296.

The product of its digits is 480, while the sum is 20.

The square root of 15214223 is about 3900.5413726815. The cubic root of 15214223 is about 247.7897053132.

Adding to 15214223 its reverse (32241251), we get a palindrome (47455474).

The spelling of 15214223 in words is "fifteen million, two hundred fourteen thousand, two hundred twenty-three".