23214215 has 4 divisors (see below), whose sum is σ = 27857064. Its totient is φ = 18571368.

The previous prime is 23214211. The next prime is 23214223. The reversal of 23214215 is 51241232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23214215 - 2² = 23214211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23214211) by changing a digit.

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, 2321417 + ... + 2321426.

It is an arithmetic number, because the mean of its divisors is an integer number (6964266).

Almost surely, 2^23214215 is an apocalyptic number.

23214215 is a deficient number, since it is larger than the sum of its proper divisors (4642849).

23214215 is an equidigital number, since it uses as much as digits as its factorization.

23214215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642848.

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

The square root of 23214215 is about 4818.1132199233. The cubic root of 23214215 is about 285.2668681198.

Adding to 23214215 its reverse (51241232), we get a palindrome (74455447).

The spelling of 23214215 in words is "twenty-three million, two hundred fourteen thousand, two hundred fifteen".