1228269233 has 2 divisors, whose sum is σ = 1228269234. Its totient is φ = 1228269232.

The previous prime is 1228269199. The next prime is 1228269271. The reversal of 1228269233 is 3329628221.

It is an a-pointer prime, because the next prime (1228269271) can be obtained adding 1228269233 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1072693504 + 155575729 = 32752^2 + 12473^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228269233 - 2¹⁸ = 1228007089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1228269293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614134616 + 614134617.

It is an arithmetic number, because the mean of its divisors is an integer number (614134617).

Almost surely, 2^1228269233 is an apocalyptic number.

It is an amenable number.

1228269233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228269233 is an equidigital number, since it uses as much as digits as its factorization.

1228269233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 1228269233 is about 35046.6722100687. The cubic root of 1228269233 is about 1070.9384822457.

The spelling of 1228269233 in words is "one billion, two hundred twenty-eight million, two hundred sixty-nine thousand, two hundred thirty-three".