1163138 has 8 divisors (see below), whose sum is σ = 1777788. Its totient is φ = 570544.

The previous prime is 1163137. The next prime is 1163143. The reversal of 1163138 is 8313611.

It can be written as a sum of positive squares in 2 ways, for example, as 1138489 + 24649 = 1067^2 + 157^2 .

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

It is a super-3 number, since 3×1163138³ = 4720793331039432216, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1163131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5381 + ... + 5592.

2^1163138 is an apocalyptic number.

1163138 is a deficient number, since it is larger than the sum of its proper divisors (614650).

1163138 is a wasteful number, since it uses less digits than its factorization.

1163138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028.

The product of its digits is 432, while the sum is 23.

The square root of 1163138 is about 1078.4887574750. The cubic root of 1163138 is about 105.1664178834.

Adding to 1163138 its reverse (8313611), we get a palindrome (9476749).

The spelling of 1163138 in words is "one million, one hundred sixty-three thousand, one hundred thirty-eight".