12155104 has 48 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 5506560.

The previous prime is 12155081. The next prime is 12155123. The reversal of 12155104 is 40155121.

12155104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25137 + ... + 25615.

It is an arithmetic number, because the mean of its divisors is an integer number (546840).

Almost surely, 2^12155104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12155104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13124160).

12155104 is an abundant number, since it is smaller than the sum of its proper divisors (14093216).

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

12155104 is a wasteful number, since it uses less digits than its factorization.

12155104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 12155104 is about 3486.4170720096. The cubic root of 12155104 is about 229.9250165147.

It can be divided in two parts, 121 and 55104, that added together give a square (55225 = 235²).

The spelling of 12155104 in words is "twelve million, one hundred fifty-five thousand, one hundred four".