12810227 has 4 divisors (see below), whose sum is σ = 12874800. Its totient is φ = 12745656.

The previous prime is 12810211. The next prime is 12810229. The reversal of 12810227 is 72201821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72201821 = 31 ⋅2329091.

It is a cyclic number.

It is not a de Polignac number, because 12810227 - 2⁴ = 12810211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12810229) 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, 31988 + ... + 32385.

It is an arithmetic number, because the mean of its divisors is an integer number (3218700).

Almost surely, 2^12810227 is an apocalyptic number.

12810227 is a deficient number, since it is larger than the sum of its proper divisors (64573).

12810227 is an equidigital number, since it uses as much as digits as its factorization.

12810227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64572.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 12810227 is about 3579.1377453236. The cubic root of 12810227 is about 233.9837023251.

The spelling of 12810227 in words is "twelve million, eight hundred ten thousand, two hundred twenty-seven".