1138642683 has 16 divisors (see below), whose sum is σ = 1527407616. Its totient is φ = 754498080.

The previous prime is 1138642663. The next prime is 1138642717. The reversal of 1138642683 is 3862468311.

It is not a de Polignac number, because 1138642683 - 2⁹ = 1138642171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1138642613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682216 + ... + 683882.

It is an arithmetic number, because the mean of its divisors is an integer number (95462976).

Almost surely, 2^1138642683 is an apocalyptic number.

1138642683 is a deficient number, since it is larger than the sum of its proper divisors (388764933).

1138642683 is a wasteful number, since it uses less digits than its factorization.

1138642683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914.

The product of its digits is 165888, while the sum is 42.

The square root of 1138642683 is about 33743.7799157119. The cubic root of 1138642683 is about 1044.2291677377.

The spelling of 1138642683 in words is "one billion, one hundred thirty-eight million, six hundred forty-two thousand, six hundred eighty-three".