999241 has 4 divisors (see below), whose sum is σ = 1015684. Its totient is φ = 982800.

The previous prime is 999239. The next prime is 999269. The reversal of 999241 is 142999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142999 = 29 ⋅4931.

It can be written as a sum of positive squares in 2 ways, for example, as 9216 + 990025 = 96^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 999241 - 2¹ = 999239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999197 and 999206.

It is not an unprimeable number, because it can be changed into a prime (999221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8130 + ... + 8251.

It is an arithmetic number, because the mean of its divisors is an integer number (253921).

2⁹⁹⁹²⁴¹ is an apocalyptic number.

It is an amenable number.

999241 is a deficient number, since it is larger than the sum of its proper divisors (16443).

999241 is a wasteful number, since it uses less digits than its factorization.

999241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16442.

The product of its digits is 5832, while the sum is 34.

The square root of 999241 is about 999.6204279625. The cubic root of 999241 is about 99.9746935964.

The spelling of 999241 in words is "nine hundred ninety-nine thousand, two hundred forty-one".