1138933343 has 16 divisors (see below), whose sum is σ = 1261080576. Its totient is φ = 1023116160.

The previous prime is 1138933291. The next prime is 1138933349. The reversal of 1138933343 is 3433398311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1138933343 - 2¹⁴ = 1138916959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1138933297 and 1138933306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138933349) 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 15 ways as a sum of consecutive naturals, for example, 193778 + ... + 199568.

It is an arithmetic number, because the mean of its divisors is an integer number (78817536).

Almost surely, 2^1138933343 is an apocalyptic number.

1138933343 is a deficient number, since it is larger than the sum of its proper divisors (122147233).

1138933343 is a wasteful number, since it uses less digits than its factorization.

1138933343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6334.

The product of its digits is 69984, while the sum is 38.

The square root of 1138933343 is about 33748.0865087193. The cubic root of 1138933343 is about 1044.3180132354.

The spelling of 1138933343 in words is "one billion, one hundred thirty-eight million, nine hundred thirty-three thousand, three hundred forty-three".