1228215353 has 2 divisors, whose sum is σ = 1228215354. Its totient is φ = 1228215352.

The previous prime is 1228215343. The next prime is 1228215367. The reversal of 1228215353 is 3535128221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 898320784 + 329894569 = 29972^2 + 18163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1228215353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1228215343) 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, 614107676 + 614107677.

It is an arithmetic number, because the mean of its divisors is an integer number (614107677).

Almost surely, 2^1228215353 is an apocalyptic number.

It is an amenable number.

1228215353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228215353 is an equidigital number, since it uses as much as digits as its factorization.

1228215353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 1228215353 is about 35045.9035123936. The cubic root of 1228215353 is about 1070.9228225387.

The spelling of 1228215353 in words is "one billion, two hundred twenty-eight million, two hundred fifteen thousand, three hundred fifty-three".