1278227 has 2 divisors, whose sum is σ = 1278228. Its totient is φ = 1278226.

The previous prime is 1278217. The next prime is 1278253. The reversal of 1278227 is 7228721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1278227 - 2⁶ = 1278163 is a prime.

It is a Chen prime.

It is equal to p₉₈₄₈₀ and since 1278227 and 98480 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1278227.

It is not a weakly prime, because it can be changed into another prime (1278217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639113 + 639114.

It is an arithmetic number, because the mean of its divisors is an integer number (639114).

2^1278227 is an apocalyptic number.

1278227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1278227 is an equidigital number, since it uses as much as digits as its factorization.

1278227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 29.

The square root of 1278227 is about 1130.5870156693. The cubic root of 1278227 is about 108.5265495988.

The spelling of 1278227 in words is "one million, two hundred seventy-eight thousand, two hundred twenty-seven".