12705261 has 8 divisors (see below), whose sum is σ = 16969344. Its totient is φ = 8455680.

The previous prime is 12705229. The next prime is 12705271. The reversal of 12705261 is 16250721.

12705261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12705261 - 2⁵ = 12705229 is a prime.

It is a super-2 number, since 2×12705261² = 322847314156242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381 + ... + 5226.

It is an arithmetic number, because the mean of its divisors is an integer number (2121168).

Almost surely, 2^12705261 is an apocalyptic number.

It is an amenable number.

12705261 is a deficient number, since it is larger than the sum of its proper divisors (4264083).

12705261 is an equidigital number, since it uses as much as digits as its factorization.

12705261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7251.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 12705261 is about 3564.4439959130. The cubic root of 12705261 is about 233.3428674109.

Adding to 12705261 its reverse (16250721), we get a palindrome (28955982).

The spelling of 12705261 in words is "twelve million, seven hundred five thousand, two hundred sixty-one".