12155208 has 32 divisors (see below), whose sum is σ = 32726400. Its totient is φ = 3739968.

The previous prime is 12155191. The next prime is 12155237. The reversal of 12155208 is 80255121.

12155208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 19168 + ... + 19791.

It is an arithmetic number, because the mean of its divisors is an integer number (1022700).

Almost surely, 2^12155208 is an apocalyptic number.

It is an amenable number.

12155208 is an abundant number, since it is smaller than the sum of its proper divisors (20571192).

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

12155208 is a wasteful number, since it uses less digits than its factorization.

12155208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38981 (or 38977 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 12155208 is about 3486.4319870033. The cubic root of 12155208 is about 229.9256722648.

The spelling of 12155208 in words is "twelve million, one hundred fifty-five thousand, two hundred eight".