1138983529 has 8 divisors (see below), whose sum is σ = 1189077120. Its totient is φ = 1088937696.

The previous prime is 1138983511. The next prime is 1138983541. The reversal of 1138983529 is 9253898311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1138983529 - 2²³ = 1130594921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1138983509) 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, 42052 + ... + 63610.

It is an arithmetic number, because the mean of its divisors is an integer number (148634640).

Almost surely, 2^1138983529 is an apocalyptic number.

It is an amenable number.

1138983529 is a deficient number, since it is larger than the sum of its proper divisors (50093591).

1138983529 is a wasteful number, since it uses less digits than its factorization.

1138983529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23879.

The product of its digits is 466560, while the sum is 49.

The square root of 1138983529 is about 33748.8300389806. The cubic root of 1138983529 is about 1044.3333519656. Note that the first 4 decimals are identical.

The spelling of 1138983529 in words is "one billion, one hundred thirty-eight million, nine hundred eighty-three thousand, five hundred twenty-nine".