243849383 has 2 divisors, whose sum is σ = 243849384. Its totient is φ = 243849382.

The previous prime is 243849349. The next prime is 243849407. The reversal of 243849383 is 383948342.

243849383 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 is a cyclic number.

It is not a de Polignac number, because 243849383 - 2¹⁶ = 243783847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243849283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121924691 + 121924692.

It is an arithmetic number, because the mean of its divisors is an integer number (121924692).

Almost surely, 2^243849383 is an apocalyptic number.

243849383 is a deficient number, since it is larger than the sum of its proper divisors (1).

243849383 is an equidigital number, since it uses as much as digits as its factorization.

243849383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 44.

The square root of 243849383 is about 15615.6774748968. The cubic root of 243849383 is about 624.7513746031.

The spelling of 243849383 in words is "two hundred forty-three million, eight hundred forty-nine thousand, three hundred eighty-three".