12241155 has 8 divisors (see below), whose sum is σ = 19585872. Its totient is φ = 6528608.

The previous prime is 12241153. The next prime is 12241157. The reversal of 12241155 is 55114221.

It is an interprime number because it is at equal distance from previous prime (12241153) and next prime (12241157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12241155 - 2¹ = 12241153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12241153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408024 + ... + 408053.

It is an arithmetic number, because the mean of its divisors is an integer number (2448234).

Almost surely, 2^12241155 is an apocalyptic number.

12241155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12241155 is a deficient number, since it is larger than the sum of its proper divisors (7344717).

12241155 is an equidigital number, since it uses as much as digits as its factorization.

12241155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816085.

The product of its digits is 400, while the sum is 21.

The square root of 12241155 is about 3498.7362004015. The cubic root of 12241155 is about 230.4663191911.

Adding to 12241155 its reverse (55114221), we get a palindrome (67355376).

The spelling of 12241155 in words is "twelve million, two hundred forty-one thousand, one hundred fifty-five".