241987 has 4 divisors (see below), whose sum is σ = 246016. Its totient is φ = 237960.

The previous prime is 241981. The next prime is 241993. The reversal of 241987 is 789142.

241987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789142 = 2 ⋅394571.

It is an interprime number because it is at equal distance from previous prime (241981) and next prime (241993).

It is a cyclic number.

It is not a de Polignac number, because 241987 - 2³ = 241979 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (241981) 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, 1923 + ... + 2044.

It is an arithmetic number, because the mean of its divisors is an integer number (61504).

2²⁴¹⁹⁸⁷ is an apocalyptic number.

241987 is a deficient number, since it is larger than the sum of its proper divisors (4029).

241987 is an equidigital number, since it uses as much as digits as its factorization.

241987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028.

The product of its digits is 4032, while the sum is 31.

The square root of 241987 is about 491.9217417435. The cubic root of 241987 is about 62.3156809582.

The spelling of 241987 in words is "two hundred forty-one thousand, nine hundred eighty-seven".