12155327 has 4 divisors (see below), whose sum is σ = 12164280. Its totient is φ = 12146376.

The previous prime is 12155291. The next prime is 12155347. The reversal of 12155327 is 72355121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12155327 - 2¹² = 12151231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12155296 and 12155305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1973 + ... + 5310.

It is an arithmetic number, because the mean of its divisors is an integer number (3041070).

Almost surely, 2^12155327 is an apocalyptic number.

12155327 is a deficient number, since it is larger than the sum of its proper divisors (8953).

12155327 is an equidigital number, since it uses as much as digits as its factorization.

12155327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8952.

The product of its digits is 2100, while the sum is 26.

The square root of 12155327 is about 3486.4490531198. The cubic root of 12155327 is about 229.9264225897.

The spelling of 12155327 in words is "twelve million, one hundred fifty-five thousand, three hundred twenty-seven".