241649 has 4 divisors (see below), whose sum is σ = 243264. Its totient is φ = 240036.

The previous prime is 241643. The next prime is 241651. The reversal of 241649 is 946142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 241649 - 2⁸ = 241393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241643) 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, 557 + ... + 890.

It is an arithmetic number, because the mean of its divisors is an integer number (60816).

2²⁴¹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

241649 is a deficient number, since it is larger than the sum of its proper divisors (1615).

241649 is a wasteful number, since it uses less digits than its factorization.

241649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614.

The product of its digits is 1728, while the sum is 26.

The square root of 241649 is about 491.5780711138. The cubic root of 241649 is about 62.2866538970.

The spelling of 241649 in words is "two hundred forty-one thousand, six hundred forty-nine".