241188989 has 2 divisors, whose sum is σ = 241188990. Its totient is φ = 241188988.

The previous prime is 241188949. The next prime is 241189009. The reversal of 241188989 is 989881142.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187416100 + 53772889 = 13690^2 + 7333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241188989 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241188949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120594494 + 120594495.

It is an arithmetic number, because the mean of its divisors is an integer number (120594495).

Almost surely, 2^241188989 is an apocalyptic number.

It is an amenable number.

241188989 is a deficient number, since it is larger than the sum of its proper divisors (1).

241188989 is an equidigital number, since it uses as much as digits as its factorization.

241188989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 50.

The square root of 241188989 is about 15530.2604292394. The cubic root of 241188989 is about 622.4710514863.

The spelling of 241188989 in words is "two hundred forty-one million, one hundred eighty-eight thousand, nine hundred eighty-nine".