12162406 has 4 divisors (see below), whose sum is σ = 18243612. Its totient is φ = 6081202.

The previous prime is 12162401. The next prime is 12162407. The reversal of 12162406 is 60426121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60426121 = 7 ⋅8632303.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162401) 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 as a sum of consecutive naturals, namely, 3040600 + ... + 3040603.

It is an arithmetic number, because the mean of its divisors is an integer number (4560903).

Almost surely, 2^12162406 is an apocalyptic number.

12162406 is a deficient number, since it is larger than the sum of its proper divisors (6081206).

12162406 is an equidigital number, since it uses as much as digits as its factorization.

12162406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081205.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12162406 is about 3487.4641216792. The cubic root of 12162406 is about 229.9710486558.

Adding to 12162406 its reverse (60426121), we get a palindrome (72588527).

The spelling of 12162406 in words is "twelve million, one hundred sixty-two thousand, four hundred six".