1130138 has 4 divisors (see below), whose sum is σ = 1695210. Its totient is φ = 565068.

The previous prime is 1130131. The next prime is 1130191. The reversal of 1130138 is 8310311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8310311 = 37 ⋅224603.

It can be written as a sum of positive squares in only one way, i.e., 1129969 + 169 = 1063^2 + 13^2 .

It is not an unprimeable number, because it can be changed into a prime (1130131) 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 as a sum of consecutive naturals, namely, 282533 + ... + 282536.

2^1130138 is an apocalyptic number.

1130138 is a deficient number, since it is larger than the sum of its proper divisors (565072).

1130138 is an equidigital number, since it uses as much as digits as its factorization.

1130138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565071.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1130138 is about 1063.0794890317. The cubic root of 1130138 is about 104.1622836200.

Adding to 1130138 its reverse (8310311), we get a palindrome (9440449).

The spelling of 1130138 in words is "one million, one hundred thirty thousand, one hundred thirty-eight".