12156108 has 12 divisors (see below), whose sum is σ = 28364280. Its totient is φ = 4052032.

The previous prime is 12156107. The next prime is 12156113. The reversal of 12156108 is 80165121.

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

It is not an unprimeable number, because it can be changed into a prime (12156101) 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, 506493 + ... + 506516.

It is an arithmetic number, because the mean of its divisors is an integer number (2363690).

Almost surely, 2^12156108 is an apocalyptic number.

It is an amenable number.

12156108 is an abundant number, since it is smaller than the sum of its proper divisors (16208172).

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

12156108 is a wasteful number, since it uses less digits than its factorization.

12156108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013016 (or 1013014 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12156108 is about 3486.5610563993. The cubic root of 12156108 is about 229.9313468694.

The spelling of 12156108 in words is "twelve million, one hundred fifty-six thousand, one hundred eight".