243941833 has 2 divisors, whose sum is σ = 243941834. Its totient is φ = 243941832.

The previous prime is 243941723. The next prime is 243941861. The reversal of 243941833 is 338149342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137170944 + 106770889 = 11712^2 + 10333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243941833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243941792 and 243941801.

It is not a weakly prime, because it can be changed into another prime (243947833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121970916 + 121970917.

It is an arithmetic number, because the mean of its divisors is an integer number (121970917).

Almost surely, 2^243941833 is an apocalyptic number.

It is an amenable number.

243941833 is a deficient number, since it is larger than the sum of its proper divisors (1).

243941833 is an equidigital number, since it uses as much as digits as its factorization.

243941833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 243941833 is about 15618.6373605382. The cubic root of 243941833 is about 624.8303180971.

The spelling of 243941833 in words is "two hundred forty-three million, nine hundred forty-one thousand, eight hundred thirty-three".