12045671 has 6 divisors (see below), whose sum is σ = 13240416. Its totient is φ = 10950500.

The previous prime is 12045661. The next prime is 12045689. The reversal of 12045671 is 17654021.

It is a de Polignac number, because none of the positive numbers 2^k-12045671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12045671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49655 + ... + 49896.

It is an arithmetic number, because the mean of its divisors is an integer number (2206736).

Almost surely, 2^12045671 is an apocalyptic number.

12045671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12045671 is a deficient number, since it is larger than the sum of its proper divisors (1194745).

12045671 is an equidigital number, since it uses as much as digits as its factorization.

12045671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99573 (or 99562 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 12045671 is about 3470.6873958915. The cubic root of 12045671 is about 229.2329266179.

Adding to 12045671 its reverse (17654021), we get a palindrome (29699692).

The spelling of 12045671 in words is "twelve million, forty-five thousand, six hundred seventy-one".