241642621 has 4 divisors (see below), whose sum is σ = 263610144. Its totient is φ = 219675100.

The previous prime is 241642619. The next prime is 241642679. The reversal of 241642621 is 126246142.

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 241642621 - 2¹ = 241642619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 241642621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241642021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10983745 + ... + 10983766.

It is an arithmetic number, because the mean of its divisors is an integer number (65902536).

Almost surely, 2^241642621 is an apocalyptic number.

It is an amenable number.

241642621 is a deficient number, since it is larger than the sum of its proper divisors (21967523).

241642621 is a wasteful number, since it uses less digits than its factorization.

241642621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21967522.

The product of its digits is 4608, while the sum is 28.

The square root of 241642621 is about 15544.8583460899. The cubic root of 241642621 is about 622.8610581550.

Adding to 241642621 its reverse (126246142), we get a palindrome (367888763).

The spelling of 241642621 in words is "two hundred forty-one million, six hundred forty-two thousand, six hundred twenty-one".