1138783375 has 8 divisors (see below), whose sum is σ = 1421201808. Its totient is φ = 911026600.

The previous prime is 1138783361. The next prime is 1138783379. The reversal of 1138783375 is 5733878311.

It is a happy number.

It is not a de Polignac number, because 1138783375 - 2⁵ = 1138783343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138783379) 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, 4555009 + ... + 4555258.

It is an arithmetic number, because the mean of its divisors is an integer number (177650226).

Almost surely, 2^1138783375 is an apocalyptic number.

1138783375 is a deficient number, since it is larger than the sum of its proper divisors (282418433).

1138783375 is an frugal number, since it uses more digits than its factorization.

1138783375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110282 (or 9110272 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 1138783375 is about 33745.8645614540. The cubic root of 1138783375 is about 1044.2721746856.

The spelling of 1138783375 in words is "one billion, one hundred thirty-eight million, seven hundred eighty-three thousand, three hundred seventy-five".