1268621233 has 24 divisors (see below), whose sum is σ = 1420159104. Its totient is φ = 1132232640.

The previous prime is 1268621171. The next prime is 1268621267. The reversal of 1268621233 is 3321268621.

It is a de Polignac number, because none of the positive numbers 2^k-1268621233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268621273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1707060 + ... + 1707802.

It is an arithmetic number, because the mean of its divisors is an integer number (59173296).

Almost surely, 2^1268621233 is an apocalyptic number.

It is an amenable number.

1268621233 is a deficient number, since it is larger than the sum of its proper divisors (151537871).

1268621233 is a wasteful number, since it uses less digits than its factorization.

1268621233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 994 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 1268621233 is about 35617.7095417434. The cubic root of 1268621233 is about 1082.5400982538.

Adding to 1268621233 its reverse (3321268621), we get a palindrome (4589889854).

The spelling of 1268621233 in words is "one billion, two hundred sixty-eight million, six hundred twenty-one thousand, two hundred thirty-three".