12266155 has 16 divisors (see below), whose sum is σ = 16257024. Its totient is φ = 8810080.

The previous prime is 12266123. The next prime is 12266171. The reversal of 12266155 is 55166221.

It is not a de Polignac number, because 12266155 - 2⁵ = 12266123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3222 + ... + 5908.

It is an arithmetic number, because the mean of its divisors is an integer number (1016064).

Almost surely, 2^12266155 is an apocalyptic number.

12266155 is a deficient number, since it is larger than the sum of its proper divisors (3990869).

12266155 is a wasteful number, since it uses less digits than its factorization.

12266155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786.

The product of its digits is 3600, while the sum is 28.

The square root of 12266155 is about 3502.3070967578. The cubic root of 12266155 is about 230.6231055972.

It can be divided in two parts, 12266 and 155, that added together give a palindrome (12421).

The spelling of 12266155 in words is "twelve million, two hundred sixty-six thousand, one hundred fifty-five".