12142808 has 16 divisors (see below), whose sum is σ = 23383680. Its totient is φ = 5907168.

The previous prime is 12142807. The next prime is 12142829. The reversal of 12142808 is 80824121.

It is a super-2 number, since 2×12142808² = 294895572249728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142807) 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 3 ways as a sum of consecutive naturals, for example, 20216 + ... + 20807.

It is an arithmetic number, because the mean of its divisors is an integer number (1461480).

Almost surely, 2^12142808 is an apocalyptic number.

It is an amenable number.

12142808 is a deficient number, since it is larger than the sum of its proper divisors (11240872).

12142808 is a wasteful number, since it uses less digits than its factorization.

12142808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41066 (or 41062 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12142808 is about 3484.6532108662. The cubic root of 12142808 is about 229.8474602922.

Adding to 12142808 its reverse (80824121), we get a palindrome (92966929).

The spelling of 12142808 in words is "twelve million, one hundred forty-two thousand, eight hundred eight".