1223245533 has 8 divisors (see below), whose sum is σ = 1632443200. Its totient is φ = 814772448.

The previous prime is 1223245519. The next prime is 1223245577. The reversal of 1223245533 is 3355423221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223245533 - 2⁶ = 1223245469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223245533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223245333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177193 + ... + 183966.

It is an arithmetic number, because the mean of its divisors is an integer number (204055400).

Almost surely, 2^1223245533 is an apocalyptic number.

It is an amenable number.

1223245533 is a deficient number, since it is larger than the sum of its proper divisors (409197667).

1223245533 is a wasteful number, since it uses less digits than its factorization.

1223245533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362291.

The product of its digits is 21600, while the sum is 30.

The square root of 1223245533 is about 34974.9272050708. The cubic root of 1223245533 is about 1069.4764180745.

Adding to 1223245533 its reverse (3355423221), we get a palindrome (4578668754).

The spelling of 1223245533 in words is "one billion, two hundred twenty-three million, two hundred forty-five thousand, five hundred thirty-three".