12812277 has 8 divisors (see below), whose sum is σ = 17102880. Its totient is φ = 8531600.

The previous prime is 12812243. The next prime is 12812291. The reversal of 12812277 is 77221821.

It is a happy number.

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 12812277 - 2¹¹ = 12810229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12812227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402 + ... + 5252.

It is an arithmetic number, because the mean of its divisors is an integer number (2137860).

Almost surely, 2^12812277 is an apocalyptic number.

It is an amenable number.

12812277 is a deficient number, since it is larger than the sum of its proper divisors (4290603).

12812277 is a wasteful number, since it uses less digits than its factorization.

12812277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963.

The product of its digits is 3136, while the sum is 30.

The square root of 12812277 is about 3579.4241156924. The cubic root of 12812277 is about 233.9961830044.

The spelling of 12812277 in words is "twelve million, eight hundred twelve thousand, two hundred seventy-seven".