12105528 has 32 divisors (see below), whose sum is σ = 31309200. Its totient is φ = 3895808.

The previous prime is 12105523. The next prime is 12105529. The reversal of 12105528 is 82550121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 12105498 and 12105507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001 + ... + 9392.

Almost surely, 2^12105528 is an apocalyptic number.

It is an amenable number.

12105528 is an abundant number, since it is smaller than the sum of its proper divisors (19203672).

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

12105528 is a wasteful number, since it uses less digits than its factorization.

12105528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431 (or 17427 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 12105528 is about 3479.2999295835. The cubic root of 12105528 is about 229.6119986283.

Adding to 12105528 its reverse (82550121), we get a palindrome (94655649).

The spelling of 12105528 in words is "twelve million, one hundred five thousand, five hundred twenty-eight".