12108655 has 16 divisors (see below), whose sum is σ = 15803424. Its totient is φ = 8853120.

The previous prime is 12108647. The next prime is 12108659. The reversal of 12108655 is 55680121.

It is not a de Polignac number, because 12108655 - 2³ = 12108647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12108659) 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, 6085 + ... + 7825.

It is an arithmetic number, because the mean of its divisors is an integer number (987714).

Almost surely, 2^12108655 is an apocalyptic number.

12108655 is a deficient number, since it is larger than the sum of its proper divisors (3694769).

12108655 is a wasteful number, since it uses less digits than its factorization.

12108655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 12108655 is about 3479.7492725770. The cubic root of 12108655 is about 229.6317674179.

Adding to 12108655 its reverse (55680121), we get a palindrome (67788776).

The spelling of 12108655 in words is "twelve million, one hundred eight thousand, six hundred fifty-five".