12406261 has 12 divisors (see below), whose sum is σ = 14741568. Its totient is φ = 10405752.

The previous prime is 12406253. The next prime is 12406267. The reversal of 12406261 is 16260421.

12406261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12406261 - 2³ = 12406253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391 + ... + 4996.

It is an arithmetic number, because the mean of its divisors is an integer number (1228464).

Almost surely, 2^12406261 is an apocalyptic number.

It is an amenable number.

12406261 is a deficient number, since it is larger than the sum of its proper divisors (2335307).

12406261 is an equidigital number, since it uses as much as digits as its factorization.

12406261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448 (or 5441 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12406261 is about 3522.2522624026. The cubic root of 12406261 is about 231.4978549249.

Adding to 12406261 its reverse (16260421), we get a palindrome (28666682).

The spelling of 12406261 in words is "twelve million, four hundred six thousand, two hundred sixty-one".