12090267 has 24 divisors (see below), whose sum is σ = 20427264. Its totient is φ = 6746544.

The previous prime is 12090263. The next prime is 12090269. The reversal of 12090267 is 76209021.

It is not a de Polignac number, because 12090267 - 2² = 12090263 is a prime.

It is a super-2 number, since 2×12090267² = 292349112262578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12090267.

It is not an unprimeable number, because it can be changed into a prime (12090263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (851136).

Almost surely, 2^12090267 is an apocalyptic number.

12090267 is a deficient number, since it is larger than the sum of its proper divisors (8336997).

12090267 is a wasteful number, since it uses less digits than its factorization.

12090267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519 (or 4516 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12090267 is about 3477.1061243511. The cubic root of 12090267 is about 229.5154702146.

Adding to 12090267 its reverse (76209021), we get a palindrome (88299288).

The spelling of 12090267 in words is "twelve million, ninety thousand, two hundred sixty-seven".