12162215 has 8 divisors (see below), whose sum is σ = 15717408. Its totient is φ = 8981280.

The previous prime is 12162211. The next prime is 12162247. The reversal of 12162215 is 51226121.

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

It is not a de Polignac number, because 12162215 - 2² = 12162211 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 (12162211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93491 + ... + 93620.

It is an arithmetic number, because the mean of its divisors is an integer number (1964676).

Almost surely, 2^12162215 is an apocalyptic number.

12162215 is a deficient number, since it is larger than the sum of its proper divisors (3555193).

12162215 is a wasteful number, since it uses less digits than its factorization.

12162215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187129.

The product of its digits is 240, while the sum is 20.

The square root of 12162215 is about 3487.4367377775. The cubic root of 12162215 is about 229.9698448178.

Adding to 12162215 its reverse (51226121), we get a palindrome (63388336).

The spelling of 12162215 in words is "twelve million, one hundred sixty-two thousand, two hundred fifteen".