1138994 has 4 divisors (see below), whose sum is σ = 1708494. Its totient is φ = 569496.

The previous prime is 1138987. The next prime is 1138997. The reversal of 1138994 is 4998311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1129969 + 9025 = 1063^2 + 95^2 .

It is not an unprimeable number, because it can be changed into a prime (1138997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284747 + ... + 284750.

2^1138994 is an apocalyptic number.

1138994 is a deficient number, since it is larger than the sum of its proper divisors (569500).

1138994 is an equidigital number, since it uses as much as digits as its factorization.

1138994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569499.

The product of its digits is 7776, while the sum is 35.

The square root of 1138994 is about 1067.2366185622. The cubic root of 1138994 is about 104.4336552240.

The spelling of 1138994 in words is "one million, one hundred thirty-eight thousand, nine hundred ninety-four".