12772261 has 8 divisors (see below), whose sum is σ = 13176000. Its totient is φ = 12374880.

The previous prime is 12772259. The next prime is 12772271. The reversal of 12772261 is 16227721.

12772261 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 12772261 - 2¹ = 12772259 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 (12772211) 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, 2665 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (1647000).

Almost surely, 2^12772261 is an apocalyptic number.

It is an amenable number.

12772261 is a deficient number, since it is larger than the sum of its proper divisors (403739).

12772261 is an equidigital number, since it uses as much as digits as its factorization.

12772261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179.

The product of its digits is 2352, while the sum is 28.

The square root of 12772261 is about 3573.8300183417. The cubic root of 12772261 is about 233.7523190787.

Adding to 12772261 its reverse (16227721), we get a palindrome (28999982).

The spelling of 12772261 in words is "twelve million, seven hundred seventy-two thousand, two hundred sixty-one".