1138318 has 4 divisors (see below), whose sum is σ = 1707480. Its totient is φ = 569158.

The previous prime is 1138273. The next prime is 1138363. The reversal of 1138318 is 8138311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8138311 = 139 ⋅58549.

It is an interprime number because it is at equal distance from previous prime (1138273) and next prime (1138363).

It is a junction number, because it is equal to n+sod(n) for n = 1138292 and 1138301.

It is a congruent number.

It is an unprimeable number.

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, 284578 + ... + 284581.

It is an arithmetic number, because the mean of its divisors is an integer number (426870).

2^1138318 is an apocalyptic number.

1138318 is a deficient number, since it is larger than the sum of its proper divisors (569162).

1138318 is an equidigital number, since it uses as much as digits as its factorization.

1138318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569161.

The product of its digits is 576, while the sum is 25.

The square root of 1138318 is about 1066.9198657819. The cubic root of 1138318 is about 104.4129904614.

The spelling of 1138318 in words is "one million, one hundred thirty-eight thousand, three hundred eighteen".