12452215 has 8 divisors (see below), whose sum is σ = 15042528. Its totient is φ = 9895200.

The previous prime is 12452213. The next prime is 12452221. The reversal of 12452215 is 51225421.

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

It is not a de Polignac number, because 12452215 - 2¹ = 12452213 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 (12452213) 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, 7492 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (1880316).

Almost surely, 2^12452215 is an apocalyptic number.

12452215 is a deficient number, since it is larger than the sum of its proper divisors (2590313).

12452215 is a wasteful number, since it uses less digits than its factorization.

12452215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16649.

The product of its digits is 800, while the sum is 22.

The square root of 12452215 is about 3528.7696156026. The cubic root of 12452215 is about 231.7833329414.

Adding to 12452215 its reverse (51225421), we get a palindrome (63677636).

The spelling of 12452215 in words is "twelve million, four hundred fifty-two thousand, two hundred fifteen".