241561001 has 4 divisors (see below), whose sum is σ = 263521104. Its totient is φ = 219600900.

The previous prime is 241560997. The next prime is 241561013. The reversal of 241561001 is 100165142.

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 241561001 - 2² = 241560997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (241561081) 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, 10980035 + ... + 10980056.

It is an arithmetic number, because the mean of its divisors is an integer number (65880276).

Almost surely, 2^241561001 is an apocalyptic number.

It is an amenable number.

241561001 is a deficient number, since it is larger than the sum of its proper divisors (21960103).

241561001 is a wasteful number, since it uses less digits than its factorization.

241561001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21960102.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 241561001 is about 15542.2328190000. The cubic root of 241561001 is about 622.7909220117.

The spelling of 241561001 in words is "two hundred forty-one million, five hundred sixty-one thousand, one".