12267155 has 4 divisors (see below), whose sum is σ = 14720592. Its totient is φ = 9813720.

The previous prime is 12267133. The next prime is 12267181. The reversal of 12267155 is 55176221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12267155 - 2⁸ = 12266899 is a prime.

It is a Duffinian number.

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, 1226711 + ... + 1226720.

It is an arithmetic number, because the mean of its divisors is an integer number (3680148).

Almost surely, 2^12267155 is an apocalyptic number.

12267155 is a deficient number, since it is larger than the sum of its proper divisors (2453437).

12267155 is an equidigital number, since it uses as much as digits as its factorization.

12267155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453436.

The product of its digits is 4200, while the sum is 29.

The square root of 12267155 is about 3502.4498568859. The cubic root of 12267155 is about 230.6293726205.

The spelling of 12267155 in words is "twelve million, two hundred sixty-seven thousand, one hundred fifty-five".