12672001 has 4 divisors (see below), whose sum is σ = 12704004. Its totient is φ = 12640000.

The previous prime is 12671969. The next prime is 12672007. The reversal of 12672001 is 10027621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10027621 = 233 ⋅43037.

It can be written as a sum of positive squares in 2 ways, for example, as 12215025 + 456976 = 3495^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 12672001 - 2⁵ = 12671969 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 12672001.

It is not an unprimeable number, because it can be changed into a prime (12672007) 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, 15400 + ... + 16201.

It is an arithmetic number, because the mean of its divisors is an integer number (3176001).

Almost surely, 2^12672001 is an apocalyptic number.

It is an amenable number.

12672001 is a deficient number, since it is larger than the sum of its proper divisors (32003).

12672001 is an equidigital number, since it uses as much as digits as its factorization.

12672001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32002.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 12672001 is about 3559.7754142642. The cubic root of 12672001 is about 233.1390734627.

Adding to 12672001 its reverse (10027621), we get a palindrome (22699622).

It can be divided in two parts, 126 and 72001, that added together give a palindrome (72127).

The spelling of 12672001 in words is "twelve million, six hundred seventy-two thousand, one".