12381027 has 16 divisors (see below), whose sum is σ = 17592960. Its totient is φ = 7722432.

The previous prime is 12381023. The next prime is 12381029. The reversal of 12381027 is 72018321.

It is not a de Polignac number, because 12381027 - 2² = 12381023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12380988 and 12381006.

It is not an unprimeable number, because it can be changed into a prime (12381023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3423 + ... + 6039.

It is an arithmetic number, because the mean of its divisors is an integer number (1099560).

Almost surely, 2^12381027 is an apocalyptic number.

12381027 is a deficient number, since it is larger than the sum of its proper divisors (5211933).

12381027 is a wasteful number, since it uses less digits than its factorization.

12381027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12381027 is about 3518.6683560688. The cubic root of 12381027 is about 231.3407949288.

Adding to 12381027 its reverse (72018321), we get a palindrome (84399348).

The spelling of 12381027 in words is "twelve million, three hundred eighty-one thousand, twenty-seven".