1228488329 has 2 divisors, whose sum is σ = 1228488330. Its totient is φ = 1228488328.

The previous prime is 1228488269. The next prime is 1228488337. The reversal of 1228488329 is 9238848221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1228362304 + 126025 = 35048^2 + 355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1228488329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1228488389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614244164 + 614244165.

It is an arithmetic number, because the mean of its divisors is an integer number (614244165).

Almost surely, 2^1228488329 is an apocalyptic number.

It is an amenable number.

1228488329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228488329 is an equidigital number, since it uses as much as digits as its factorization.

1228488329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 47.

The square root of 1228488329 is about 35049.7978453514. The cubic root of 1228488329 is about 1071.0021556873.

The spelling of 1228488329 in words is "one billion, two hundred twenty-eight million, four hundred eighty-eight thousand, three hundred twenty-nine".