241635661 has 4 divisors (see below), whose sum is σ = 243538432. Its totient is φ = 239732892.

The previous prime is 241635629. The next prime is 241635683. The reversal of 241635661 is 166536142.

241635661 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 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 241635661 - 2⁵ = 241635629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241630661) 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, 951195 + ... + 951448.

It is an arithmetic number, because the mean of its divisors is an integer number (60884608).

Almost surely, 2^241635661 is an apocalyptic number.

It is an amenable number.

241635661 is a deficient number, since it is larger than the sum of its proper divisors (1902771).

241635661 is a wasteful number, since it uses less digits than its factorization.

241635661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902770.

The product of its digits is 25920, while the sum is 34.

The square root of 241635661 is about 15544.6344762429. The cubic root of 241635661 is about 622.8550780364.

The spelling of 241635661 in words is "two hundred forty-one million, six hundred thirty-five thousand, six hundred sixty-one".