1228277 has 2 divisors, whose sum is σ = 1228278. Its totient is φ = 1228276.

The previous prime is 1228273. The next prime is 1228291. The reversal of 1228277 is 7728221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1223236 + 5041 = 1106^2 + 71^2 .

It is an emirp because it is prime and its reverse (7728221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1228277 - 2² = 1228273 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614138 + 614139.

It is an arithmetic number, because the mean of its divisors is an integer number (614139).

2^1228277 is an apocalyptic number.

It is an amenable number.

1228277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228277 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 1228277 = (2271782)₉.

1228277 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 1228277 is about 1108.2765900262. The cubic root of 1228277 is about 107.0940739612.

The spelling of 1228277 in words is "one million, two hundred twenty-eight thousand, two hundred seventy-seven".