1138983247 has 8 divisors (see below), whose sum is σ = 1173313232. Its totient is φ = 1104840000.

The previous prime is 1138983217. The next prime is 1138983257. The reversal of 1138983247 is 7423898311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1138983247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1138983197 and 1138983206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138983217) 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, 34254 + ... + 58747.

It is an arithmetic number, because the mean of its divisors is an integer number (146664154).

Almost surely, 2^1138983247 is an apocalyptic number.

1138983247 is a deficient number, since it is larger than the sum of its proper divisors (34329985).

1138983247 is an equidigital number, since it uses as much as digits as its factorization.

1138983247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93369.

The product of its digits is 290304, while the sum is 46.

The square root of 1138983247 is about 33748.8258610577. The cubic root of 1138983247 is about 1044.3332657771. Note that the first 3 decimals are identical.

The spelling of 1138983247 in words is "one billion, one hundred thirty-eight million, nine hundred eighty-three thousand, two hundred forty-seven".