1148939 has 8 divisors (see below), whose sum is σ = 1263600. Its totient is φ = 1036000.

The previous prime is 1148933. The next prime is 1148941. The reversal of 1148939 is 9398411.

1148939 = T₄₂ + T₄₃ + ... + T₁₉₀.

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

It is a cyclic number.

It is not a de Polignac number, because 1148939 - 2²⁰ = 100363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1148899 and 1148908.

It is not an unprimeable number, because it can be changed into a prime (1148933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289 + ... + 1989.

It is an arithmetic number, because the mean of its divisors is an integer number (157950).

2^1148939 is an apocalyptic number.

1148939 is a deficient number, since it is larger than the sum of its proper divisors (114661).

1148939 is a wasteful number, since it uses less digits than its factorization.

1148939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

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

The square root of 1148939 is about 1071.8857215207. The cubic root of 1148939 is about 104.7367251535.

The spelling of 1148939 in words is "one million, one hundred forty-eight thousand, nine hundred thirty-nine".