12031466 has 4 divisors (see below), whose sum is σ = 18047202. Its totient is φ = 6015732.

The previous prime is 12031417. The next prime is 12031471. The reversal of 12031466 is 66413021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66413021 = 47 ⋅1413043.

It can be written as a sum of positive squares in only one way, i.e., 10660225 + 1371241 = 3265^2 + 1171^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3007865 + ... + 3007868.

Almost surely, 2^12031466 is an apocalyptic number.

12031466 is a deficient number, since it is larger than the sum of its proper divisors (6015736).

12031466 is an equidigital number, since it uses as much as digits as its factorization.

12031466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015735.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12031466 is about 3468.6403676369. The cubic root of 12031466 is about 229.1427826275.

Adding to 12031466 its reverse (66413021), we get a palindrome (78444487).

The spelling of 12031466 in words is "twelve million, thirty-one thousand, four hundred sixty-six".