12162254 has 12 divisors (see below), whose sum is σ = 19755216. Its totient is φ = 5613192.

The previous prime is 12162253. The next prime is 12162257. The reversal of 12162254 is 45226121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162253) 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 5 ways as a sum of consecutive naturals, for example, 17654 + ... + 18329.

It is an arithmetic number, because the mean of its divisors is an integer number (1646268).

Almost surely, 2^12162254 is an apocalyptic number.

12162254 is a deficient number, since it is larger than the sum of its proper divisors (7592962).

12162254 is a wasteful number, since it uses less digits than its factorization.

12162254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36011 (or 35998 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 12162254 is about 3487.4423292723. The cubic root of 12162254 is about 229.9700906287.

Adding to 12162254 its reverse (45226121), we get a palindrome (57388375).

The spelling of 12162254 in words is "twelve million, one hundred sixty-two thousand, two hundred fifty-four".