12082138 has 32 divisors (see below), whose sum is σ = 20606400. Its totient is φ = 5278464.

The previous prime is 12082129. The next prime is 12082139. The reversal of 12082138 is 83128021.

It is not an unprimeable number, because it can be changed into a prime (12082139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37956 + ... + 38272.

It is an arithmetic number, because the mean of its divisors is an integer number (643950).

Almost surely, 2^12082138 is an apocalyptic number.

12082138 is a deficient number, since it is larger than the sum of its proper divisors (8524262).

12082138 is a wasteful number, since it uses less digits than its factorization.

12082138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 12082138 is about 3475.9369959768. The cubic root of 12082138 is about 229.4640197501.

The spelling of 12082138 in words is "twelve million, eighty-two thousand, one hundred thirty-eight".