1138936833 has 6 divisors (see below), whose sum is σ = 1645130994. Its totient is φ = 759291216.

The previous prime is 1138936789. The next prime is 1138936837. The reversal of 1138936833 is 3386398311.

It can be written as a sum of positive squares in only one way, i.e., 881911809 + 257025024 = 29697^2 + 16032^2 .

It is not a de Polignac number, because 1138936833 - 2¹² = 1138932737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1138936837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63274260 + ... + 63274277.

It is an arithmetic number, because the mean of its divisors is an integer number (274188499).

Almost surely, 2^1138936833 is an apocalyptic number.

It is an amenable number.

1138936833 is a deficient number, since it is larger than the sum of its proper divisors (506194161).

1138936833 is a wasteful number, since it uses less digits than its factorization.

1138936833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126548543 (or 126548540 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1138936833 is about 33748.1382153149. The cubic root of 1138936833 is about 1044.3190799253.

The spelling of 1138936833 in words is "one billion, one hundred thirty-eight million, nine hundred thirty-six thousand, eight hundred thirty-three".