12770245 has 4 divisors (see below), whose sum is σ = 15324300. Its totient is φ = 10216192.

The previous prime is 12770239. The next prime is 12770287. The reversal of 12770245 is 54207721.

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 6806881 + 5963364 = 2609^2 + 2442^2 .

It is a cyclic number.

It is not a de Polignac number, because 12770245 - 2¹⁵ = 12737477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277020 + ... + 1277029.

It is an arithmetic number, because the mean of its divisors is an integer number (3831075).

Almost surely, 2^12770245 is an apocalyptic number.

It is an amenable number.

12770245 is a deficient number, since it is larger than the sum of its proper divisors (2554055).

12770245 is an equidigital number, since it uses as much as digits as its factorization.

12770245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554054.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 12770245 is about 3573.5479568630. The cubic root of 12770245 is about 233.7400197823.

Adding to 12770245 its reverse (54207721), we get a palindrome (66977966).

The spelling of 12770245 in words is "twelve million, seven hundred seventy thousand, two hundred forty-five".