12267601 has 4 divisors (see below), whose sum is σ = 12274612. Its totient is φ = 12260592.

The previous prime is 12267587. The next prime is 12267641. The reversal of 12267601 is 10676221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10676221 = 17 ⋅628013.

It can be written as a sum of positive squares in 2 ways, for example, as 6507601 + 5760000 = 2551^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 12267601 - 2¹³ = 12259409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12267641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (3068653).

Almost surely, 2^12267601 is an apocalyptic number.

It is an amenable number.

12267601 is a deficient number, since it is larger than the sum of its proper divisors (7011).

12267601 is an equidigital number, since it uses as much as digits as its factorization.

12267601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7010.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12267601 is about 3502.5135260267. The cubic root of 12267601 is about 230.6321676031.

The spelling of 12267601 in words is "twelve million, two hundred sixty-seven thousand, six hundred one".