12700261 has 16 divisors (see below), whose sum is σ = 15078400. Its totient is φ = 10689840.

The previous prime is 12700249. The next prime is 12700271. The reversal of 12700261 is 16200721.

12700261 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 12700261 - 2¹⁷ = 12569189 is a prime.

It is a super-2 number, since 2×12700261² = 322593258936242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12700271) 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 15 ways as a sum of consecutive naturals, for example, 20620 + ... + 21226.

It is an arithmetic number, because the mean of its divisors is an integer number (942400).

Almost surely, 2^12700261 is an apocalyptic number.

It is an amenable number.

12700261 is a deficient number, since it is larger than the sum of its proper divisors (2378139).

12700261 is an frugal number, since it uses more digits than its factorization.

12700261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 675 counting only the distinct ones).

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

The square root of 12700261 is about 3563.7425552360. The cubic root of 12700261 is about 233.3122536512.

Adding to 12700261 its reverse (16200721), we get a palindrome (28900982).

The spelling of 12700261 in words is "twelve million, seven hundred thousand, two hundred sixty-one".