12162427 has 4 divisors (see below), whose sum is σ = 12170536. Its totient is φ = 12154320.

The previous prime is 12162407. The next prime is 12162481. The reversal of 12162427 is 72426121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12162427 - 2¹⁵ = 12129659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12162407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (3042634).

Almost surely, 2^12162427 is an apocalyptic number.

12162427 is a deficient number, since it is larger than the sum of its proper divisors (8109).

12162427 is an equidigital number, since it uses as much as digits as its factorization.

12162427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8108.

The product of its digits is 1344, while the sum is 25.

The square root of 12162427 is about 3487.4671324616. The cubic root of 12162427 is about 229.9711810142.

Adding to 12162427 its reverse (72426121), we get a palindrome (84588548).

The spelling of 12162427 in words is "twelve million, one hundred sixty-two thousand, four hundred twenty-seven".