12772285 has 4 divisors (see below), whose sum is σ = 15326748. Its totient is φ = 10217824.

The previous prime is 12772283. The next prime is 12772303. The reversal of 12772285 is 58227721.

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 7064964 + 5707321 = 2658^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 12772285 - 2¹ = 12772283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12772285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772283) 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, 1277224 + ... + 1277233.

It is an arithmetic number, because the mean of its divisors is an integer number (3831687).

Almost surely, 2^12772285 is an apocalyptic number.

It is an amenable number.

12772285 is a deficient number, since it is larger than the sum of its proper divisors (2554463).

12772285 is an equidigital number, since it uses as much as digits as its factorization.

12772285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554462.

The product of its digits is 15680, while the sum is 34.

The square root of 12772285 is about 3573.8333760823. The cubic root of 12772285 is about 233.7524654911.

The spelling of 12772285 in words is "twelve million, seven hundred seventy-two thousand, two hundred eighty-five".