12139468 has 12 divisors (see below), whose sum is σ = 23175432. Its totient is φ = 5517920.

The previous prime is 12139447. The next prime is 12139483. The reversal of 12139468 is 86493121.

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, 137905 + ... + 137992.

It is an arithmetic number, because the mean of its divisors is an integer number (1931286).

Almost surely, 2^12139468 is an apocalyptic number.

It is an amenable number.

12139468 is a deficient number, since it is larger than the sum of its proper divisors (11035964).

12139468 is a wasteful number, since it uses less digits than its factorization.

12139468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275912 (or 275910 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 12139468 is about 3484.1739336606. The cubic root of 12139468 is about 229.8263844171.

The spelling of 12139468 in words is "twelve million, one hundred thirty-nine thousand, four hundred sixty-eight".