12421167 has 8 divisors (see below), whose sum is σ = 18067200. Its totient is φ = 7527960.

The previous prime is 12421163. The next prime is 12421177. The reversal of 12421167 is 76112421.

12421167 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12421167 - 2² = 12421163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421163) 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, 188167 + ... + 188232.

It is an arithmetic number, because the mean of its divisors is an integer number (2258400).

Almost surely, 2^12421167 is an apocalyptic number.

12421167 is a deficient number, since it is larger than the sum of its proper divisors (5646033).

12421167 is a wasteful number, since it uses less digits than its factorization.

12421167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376413.

The product of its digits is 672, while the sum is 24.

The square root of 12421167 is about 3524.3676028474. The cubic root of 12421167 is about 231.5905319464.

Adding to 12421167 its reverse (76112421), we get a palindrome (88533588).

The spelling of 12421167 in words is "twelve million, four hundred twenty-one thousand, one hundred sixty-seven".