1228105057 has 2 divisors, whose sum is σ = 1228105058. Its totient is φ = 1228105056.

The previous prime is 1228105051. The next prime is 1228105093. The reversal of 1228105057 is 7505018221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102306401 + 125798656 = 33201^2 + 11216^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228105057 - 2³ = 1228105049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1228105051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614052528 + 614052529.

It is an arithmetic number, because the mean of its divisors is an integer number (614052529).

Almost surely, 2^1228105057 is an apocalyptic number.

It is an amenable number.

1228105057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228105057 is an equidigital number, since it uses as much as digits as its factorization.

1228105057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 1228105057 is about 35044.3298837344. The cubic root of 1228105057 is about 1070.8907646320.

The spelling of 1228105057 in words is "one billion, two hundred twenty-eight million, one hundred five thousand, fifty-seven".