12140208 has 30 divisors (see below), whose sum is σ = 33976124. Its totient is φ = 4046688.

The previous prime is 12140201. The next prime is 12140231. The reversal of 12140208 is 80204121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12140201) 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, 42010 + ... + 42297.

Almost surely, 2^12140208 is an apocalyptic number.

12140208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12140208 is an abundant number, since it is smaller than the sum of its proper divisors (21835916).

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

12140208 is a wasteful number, since it uses less digits than its factorization.

12140208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84321 (or 84312 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 12140208 is about 3484.2801265111. The cubic root of 12140208 is about 229.8310542557.

Adding to 12140208 its reverse (80204121), we get a palindrome (92344329).

The spelling of 12140208 in words is "twelve million, one hundred forty thousand, two hundred eight".