241897813 has 2 divisors, whose sum is σ = 241897814. Its totient is φ = 241897812.

The previous prime is 241897801. The next prime is 241897819. The reversal of 241897813 is 318798142.

241897813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236482884 + 5414929 = 15378^2 + 2327^2 .

It is a cyclic number.

It is not a de Polignac number, because 241897813 - 2²¹ = 239800661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 241897813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241897819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120948906 + 120948907.

It is an arithmetic number, because the mean of its divisors is an integer number (120948907).

Almost surely, 2^241897813 is an apocalyptic number.

It is an amenable number.

241897813 is a deficient number, since it is larger than the sum of its proper divisors (1).

241897813 is an equidigital number, since it uses as much as digits as its factorization.

241897813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 43.

The square root of 241897813 is about 15553.0644247364. The cubic root of 241897813 is about 623.0802430507.

The spelling of 241897813 in words is "two hundred forty-one million, eight hundred ninety-seven thousand, eight hundred thirteen".