1098241 has 4 divisors (see below), whose sum is σ = 1100500. Its totient is φ = 1095984.

The previous prime is 1098233. The next prime is 1098269. The reversal of 1098241 is 1428901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1428901 = 17 ⋅84053.

It can be written as a sum of positive squares in 2 ways, for example, as 250000 + 848241 = 500^2 + 921^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098241 - 2³ = 1098233 is a prime.

It is a super-2 number, since 2×1098241² = 2412266588162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66 + ... + 1483.

It is an arithmetic number, because the mean of its divisors is an integer number (275125).

2^1098241 is an apocalyptic number.

It is an amenable number.

1098241 is a deficient number, since it is larger than the sum of its proper divisors (2259).

1098241 is an equidigital number, since it uses as much as digits as its factorization.

1098241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258.

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

The square root of 1098241 is about 1047.9699423170. The cubic root of 1098241 is about 103.1729585320.

The spelling of 1098241 in words is "one million, ninety-eight thousand, two hundred forty-one".