12422154 has 16 divisors (see below), whose sum is σ = 25004448. Its totient is φ = 4114032.

The previous prime is 12422153. The next prime is 12422209. The reversal of 12422154 is 45122421.

It is a self number, because there is not a number n which added to its sum of digits gives 12422154.

It is not an unprimeable number, because it can be changed into a prime (12422153) 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 7 ways as a sum of consecutive naturals, for example, 5652 + ... + 7535.

It is an arithmetic number, because the mean of its divisors is an integer number (1562778).

Almost surely, 2^12422154 is an apocalyptic number.

12422154 is an abundant number, since it is smaller than the sum of its proper divisors (12582294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12422154 is a wasteful number, since it uses less digits than its factorization.

12422154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349.

The product of its digits is 640, while the sum is 21.

The square root of 12422154 is about 3524.5076251868. The cubic root of 12422154 is about 231.5966659326.

Adding to 12422154 its reverse (45122421), we get a palindrome (57544575).

The spelling of 12422154 in words is "twelve million, four hundred twenty-two thousand, one hundred fifty-four".