12155154 has 32 divisors (see below), whose sum is σ = 27143424. Its totient is φ = 3596880.

The previous prime is 12155137. The next prime is 12155159. The reversal of 12155154 is 45155121.

12155154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12155159) 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, 697 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (848232).

Almost surely, 2^12155154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12155154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13571712).

12155154 is an abundant number, since it is smaller than the sum of its proper divisors (14988270).

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

12155154 is a wasteful number, since it uses less digits than its factorization.

12155154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342.

The product of its digits is 1000, while the sum is 24.

The square root of 12155154 is about 3486.4242426876. The cubic root of 12155154 is about 229.9253317796.

The spelling of 12155154 in words is "twelve million, one hundred fifty-five thousand, one hundred fifty-four".