1233228533 has 2 divisors, whose sum is σ = 1233228534. Its totient is φ = 1233228532.

The previous prime is 1233228487. The next prime is 1233228553. The reversal of 1233228533 is 3358223321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1192804369 + 40424164 = 34537^2 + 6358^2 .

It is an emirp because it is prime and its reverse (3358223321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233228533 is a prime.

It is a super-2 number, since 2×1233228533² = 3041705229210664178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1233228533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233228553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616614266 + 616614267.

It is an arithmetic number, because the mean of its divisors is an integer number (616614267).

Almost surely, 2^1233228533 is an apocalyptic number.

It is an amenable number.

1233228533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233228533 is an equidigital number, since it uses as much as digits as its factorization.

1233228533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 1233228533 is about 35117.3537300293. The cubic root of 1233228533 is about 1072.3778987749.

The spelling of 1233228533 in words is "one billion, two hundred thirty-three million, two hundred twenty-eight thousand, five hundred thirty-three".