12155652 has 54 divisors (see below), whose sum is σ = 31578638. Its totient is φ = 3942144.

The previous prime is 12155641. The next prime is 12155677. The reversal of 12155652 is 25655121.

12155652 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 5 + 652 = 666.

12155652 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10150596 + 2005056 = 3186^2 + 1416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 125268 + ... + 125364.

Almost surely, 2^12155652 is an apocalyptic number.

12155652 is a gapful number since it is divisible by the number (12) 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 12155652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15789319).

12155652 is an abundant number, since it is smaller than the sum of its proper divisors (19422986).

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

12155652 is a wasteful number, since it uses less digits than its factorization.

12155652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 161 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 12155652 is about 3486.4956618358. The cubic root of 12155652 is about 229.9284717714.

The spelling of 12155652 in words is "twelve million, one hundred fifty-five thousand, six hundred fifty-two".