1228618057 has 2 divisors, whose sum is σ = 1228618058. Its totient is φ = 1228618056.

The previous prime is 1228618051. The next prime is 1228618073. The reversal of 1228618057 is 7508168221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191906576 + 36711481 = 34524^2 + 6059^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228618057 - 2¹¹ = 1228616009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1228618051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614309028 + 614309029.

It is an arithmetic number, because the mean of its divisors is an integer number (614309029).

Almost surely, 2^1228618057 is an apocalyptic number.

It is an amenable number.

1228618057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228618057 is an equidigital number, since it uses as much as digits as its factorization.

1228618057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 1228618057 is about 35051.6484205807. The cubic root of 1228618057 is about 1071.0398535294.

The spelling of 1228618057 in words is "one billion, two hundred twenty-eight million, six hundred eighteen thousand, fifty-seven".