243155045333 has 2 divisors, whose sum is σ = 243155045334. Its totient is φ = 243155045332.

The previous prime is 243155045321. The next prime is 243155045359. The reversal of 243155045333 is 333540551342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230838928849 + 12316116484 = 480457^2 + 110978^2 .

It is a cyclic number.

It is not a de Polignac number, because 243155045333 - 2¹⁶ = 243154979797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243155045533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121577522666 + 121577522667.

It is an arithmetic number, because the mean of its divisors is an integer number (121577522667).

Almost surely, 2^243155045333 is an apocalyptic number.

It is an amenable number.

243155045333 is a deficient number, since it is larger than the sum of its proper divisors (1).

243155045333 is an equidigital number, since it uses as much as digits as its factorization.

243155045333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 38.

Adding to 243155045333 its reverse (333540551342), we get a palindrome (576695596675).

The spelling of 243155045333 in words is "two hundred forty-three billion, one hundred fifty-five million, forty-five thousand, three hundred thirty-three".