12155432 has 16 divisors (see below), whose sum is σ = 22831200. Its totient is φ = 6067120.

The previous prime is 12155419. The next prime is 12155447. The reversal of 12155432 is 23455121.

12155432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12155398 and 12155407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5807 + ... + 7617.

It is an arithmetic number, because the mean of its divisors is an integer number (1426950).

Almost surely, 2^12155432 is an apocalyptic number.

It is an amenable number.

12155432 is a deficient number, since it is larger than the sum of its proper divisors (10675768).

12155432 is a wasteful number, since it uses less digits than its factorization.

12155432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656 (or 2652 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 12155432 is about 3486.4641113885. The cubic root of 12155432 is about 229.9270846370.

The spelling of 12155432 in words is "twelve million, one hundred fifty-five thousand, four hundred thirty-two".