12013667 has 4 divisors (see below), whose sum is σ = 12101496. Its totient is φ = 11925840.

The previous prime is 12013663. The next prime is 12013699. The reversal of 12013667 is 76631021.

12013667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76631021 = 29 ⋅2642449.

It is a cyclic number.

It is not a de Polignac number, because 12013667 - 2² = 12013663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43709 + ... + 43982.

It is an arithmetic number, because the mean of its divisors is an integer number (3025374).

Almost surely, 2^12013667 is an apocalyptic number.

12013667 is a deficient number, since it is larger than the sum of its proper divisors (87829).

12013667 is an equidigital number, since it uses as much as digits as its factorization.

12013667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87828.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12013667 is about 3466.0737153154. The cubic root of 12013667 is about 229.0297311436.

Adding to 12013667 its reverse (76631021), we get a palindrome (88644688).

The spelling of 12013667 in words is "twelve million, thirteen thousand, six hundred sixty-seven".