1139303 has 4 divisors (see below), whose sum is σ = 1242888. Its totient is φ = 1035720.

The previous prime is 1139293. The next prime is 1139309. The reversal of 1139303 is 3039311.

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

It is a cyclic number.

It is not a de Polignac number, because 1139303 - 2⁴ = 1139287 is a prime.

It is a super-2 number, since 2×1139303² = 2596022651618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51776 + ... + 51797.

It is an arithmetic number, because the mean of its divisors is an integer number (310722).

2^1139303 is an apocalyptic number.

1139303 is a deficient number, since it is larger than the sum of its proper divisors (103585).

1139303 is a wasteful number, since it uses less digits than its factorization.

1139303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103584.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 1139303 is about 1067.3813751420. The cubic root of 1139303 is about 104.4430983764.

The spelling of 1139303 in words is "one million, one hundred thirty-nine thousand, three hundred three".