1227168797 has 2 divisors, whose sum is σ = 1227168798. Its totient is φ = 1227168796.

The previous prime is 1227168779. The next prime is 1227168823. The reversal of 1227168797 is 7978617221.

It is a happy number.

Together with previous prime (1227168779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689902756 + 537266041 = 26266^2 + 23179^2 .

It is a cyclic number.

It is not a de Polignac number, because 1227168797 - 2²⁸ = 958733341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227168707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613584398 + 613584399.

It is an arithmetic number, because the mean of its divisors is an integer number (613584399).

Almost surely, 2^1227168797 is an apocalyptic number.

It is an amenable number.

1227168797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227168797 is an equidigital number, since it uses as much as digits as its factorization.

1227168797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 50.

The square root of 1227168797 is about 35030.9691130577. The cubic root of 1227168797 is about 1070.6185601548.

The spelling of 1227168797 in words is "one billion, two hundred twenty-seven million, one hundred sixty-eight thousand, seven hundred ninety-seven".