12153856 has 88 divisors (see below), whose sum is σ = 28887264. Its totient is φ = 5038080.

The previous prime is 12153853. The next prime is 12153857. The reversal of 12153856 is 65835121.

It is a tau number, because it is divible by the number of its divisors (88).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146391 + ... + 146473.

Almost surely, 2^12153856 is an apocalyptic number.

12153856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12153856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14443632).

12153856 is an abundant number, since it is smaller than the sum of its proper divisors (16733408).

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

12153856 is a wasteful number, since it uses less digits than its factorization.

12153856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 109 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 12153856 is about 3486.2380871076. The cubic root of 12153856 is about 229.9171472212.

Adding to 12153856 its reverse (65835121), we get a palindrome (77988977).

The spelling of 12153856 in words is "twelve million, one hundred fifty-three thousand, eight hundred fifty-six".