12140988 has 12 divisors (see below), whose sum is σ = 28329000. Its totient is φ = 4046992.

The previous prime is 12140977. The next prime is 12141001. The reversal of 12140988 is 88904121.

12140988 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12140988² = 294807179232288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505863 + ... + 505886.

It is an arithmetic number, because the mean of its divisors is an integer number (2360750).

Almost surely, 2^12140988 is an apocalyptic number.

It is an amenable number.

12140988 is an abundant number, since it is smaller than the sum of its proper divisors (16188012).

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

12140988 is a wasteful number, since it uses less digits than its factorization.

12140988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011756 (or 1011754 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 12140988 is about 3484.3920560121. The cubic root of 12140988 is about 229.8359763126.

The spelling of 12140988 in words is "twelve million, one hundred forty thousand, nine hundred eighty-eight".