241008991 has 4 divisors (see below), whose sum is σ = 241255152. Its totient is φ = 240762832.

The previous prime is 241008959. The next prime is 241009007. The reversal of 241008991 is 199800142.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 241008991 - 2⁵ = 241008959 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 (241008931) 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, 121606 + ... + 123571.

It is an arithmetic number, because the mean of its divisors is an integer number (60313788).

Almost surely, 2^241008991 is an apocalyptic number.

241008991 is a deficient number, since it is larger than the sum of its proper divisors (246161).

241008991 is an equidigital number, since it uses as much as digits as its factorization.

241008991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246160.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 241008991 is about 15524.4642741706. The cubic root of 241008991 is about 622.3161640557.

The spelling of 241008991 in words is "two hundred forty-one million, eight thousand, nine hundred ninety-one".