12078136 has 16 divisors (see below), whose sum is σ = 25881840. Its totient is φ = 5176320.

The previous prime is 12078103. The next prime is 12078139. The reversal of 12078136 is 63187021.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12078139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107785 + ... + 107896.

It is an arithmetic number, because the mean of its divisors is an integer number (1617615).

Almost surely, 2^12078136 is an apocalyptic number.

It is an amenable number.

12078136 is an abundant number, since it is smaller than the sum of its proper divisors (13803704).

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

12078136 is a wasteful number, since it uses less digits than its factorization.

12078136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215694 (or 215690 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12078136 is about 3475.3612761841. The cubic root of 12078136 is about 229.4386816182.

The spelling of 12078136 in words is "twelve million, seventy-eight thousand, one hundred thirty-six".