12752277 has 16 divisors (see below), whose sum is σ = 17478720. Its totient is φ = 8266752.

The previous prime is 12752273. The next prime is 12752279. The reversal of 12752277 is 77225721.

It is not a de Polignac number, because 12752277 - 2² = 12752273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12752273) 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, 21813 + ... + 22389.

It is an arithmetic number, because the mean of its divisors is an integer number (1092420).

Almost surely, 2^12752277 is an apocalyptic number.

It is an amenable number.

12752277 is a deficient number, since it is larger than the sum of its proper divisors (4726443).

12752277 is a wasteful number, since it uses less digits than its factorization.

12752277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772.

The product of its digits is 13720, while the sum is 33.

The square root of 12752277 is about 3571.0330438124. The cubic root of 12752277 is about 233.6303426390.

Adding to 12752277 its reverse (77225721), we get a palindrome (89977998).

The spelling of 12752277 in words is "twelve million, seven hundred fifty-two thousand, two hundred seventy-seven".