241512391 has 2 divisors, whose sum is σ = 241512392. Its totient is φ = 241512390.

The previous prime is 241512389. The next prime is 241512407. The reversal of 241512391 is 193215142.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 241512391 - 2¹ = 241512389 is a prime.

Together with 241512389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241512371) 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 as a sum of consecutive naturals, namely, 120756195 + 120756196.

It is an arithmetic number, because the mean of its divisors is an integer number (120756196).

Almost surely, 2^241512391 is an apocalyptic number.

241512391 is a deficient number, since it is larger than the sum of its proper divisors (1).

241512391 is an equidigital number, since it uses as much as digits as its factorization.

241512391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 241512391 is about 15540.6689366964. The cubic root of 241512391 is about 622.7491438859.

The spelling of 241512391 in words is "two hundred forty-one million, five hundred twelve thousand, three hundred ninety-one".