1223235045 has 24 divisors (see below), whose sum is σ = 2188672512. Its totient is φ = 631346400.

The previous prime is 1223235037. The next prime is 1223235077. The reversal of 1223235045 is 5405323221.

It is a happy number.

1223235045 is a `hidden beast` number, since 122 + 32 + 3 + 504 + 5 = 666.

It is not a de Polignac number, because 1223235045 - 2³ = 1223235037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 437041 + ... + 439830.

It is an arithmetic number, because the mean of its divisors is an integer number (91194688).

Almost surely, 2^1223235045 is an apocalyptic number.

1223235045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223235045 is a deficient number, since it is larger than the sum of its proper divisors (965437467).

1223235045 is a wasteful number, since it uses less digits than its factorization.

1223235045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876913 (or 876910 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1223235045 is about 34974.7772687690. Note that the first 3 decimals coincide. The cubic root of 1223235045 is about 1069.4733615334.

Adding to 1223235045 its reverse (5405323221), we get a palindrome (6628558266).

The spelling of 1223235045 in words is "one billion, two hundred twenty-three million, two hundred thirty-five thousand, forty-five".