12162078 has 48 divisors (see below), whose sum is σ = 28473120. Its totient is φ = 3740352.

The previous prime is 12162067. The next prime is 12162079. The reversal of 12162078 is 87026121.

12162078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12162078² = 295832282556168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11500 + ... + 12512.

It is an arithmetic number, because the mean of its divisors is an integer number (593190).

Almost surely, 2^12162078 is an apocalyptic number.

12162078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12162078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14236560).

12162078 is an abundant number, since it is smaller than the sum of its proper divisors (16311042).

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

12162078 is a wasteful number, since it uses less digits than its factorization.

12162078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12162078 is about 3487.4170957888. The cubic root of 12162078 is about 229.9689813241.

Adding to 12162078 its reverse (87026121), we get a palindrome (99188199).

The spelling of 12162078 in words is "twelve million, one hundred sixty-two thousand, seventy-eight".