12308641 has 4 divisors (see below), whose sum is σ = 12510484. Its totient is φ = 12106800.

The previous prime is 12308623. The next prime is 12308669. The reversal of 12308641 is 14680321.

12308641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 11662225 = 804^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 12308641 - 2¹⁷ = 12177569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12308671) 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, 100830 + ... + 100951.

It is an arithmetic number, because the mean of its divisors is an integer number (3127621).

Almost surely, 2^12308641 is an apocalyptic number.

It is an amenable number.

12308641 is a deficient number, since it is larger than the sum of its proper divisors (201843).

12308641 is an equidigital number, since it uses as much as digits as its factorization.

12308641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201842.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 12308641 is about 3508.3672840796. The cubic root of 12308641 is about 230.8890667540.

Adding to 12308641 its reverse (14680321), we get a palindrome (26988962).

The spelling of 12308641 in words is "twelve million, three hundred eight thousand, six hundred forty-one".