1138160243 has 12 divisors (see below), whose sum is σ = 1260185640. Its totient is φ = 1027123680.

The previous prime is 1138160239. The next prime is 1138160273. The reversal of 1138160243 is 3420618311.

It is not a de Polignac number, because 1138160243 - 2² = 1138160239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1138160273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17753 + ... + 50906.

It is an arithmetic number, because the mean of its divisors is an integer number (105015470).

Almost surely, 2^1138160243 is an apocalyptic number.

1138160243 is a deficient number, since it is larger than the sum of its proper divisors (122025397).

1138160243 is a wasteful number, since it uses less digits than its factorization.

1138160243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68818 (or 68807 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1138160243 is about 33736.6305816097. The cubic root of 1138160243 is about 1044.0816678258.

Adding to 1138160243 its reverse (3420618311), we get a palindrome (4558778554).

The spelling of 1138160243 in words is "one billion, one hundred thirty-eight million, one hundred sixty thousand, two hundred forty-three".