243101250449 has 2 divisors, whose sum is σ = 243101250450. Its totient is φ = 243101250448.

The previous prime is 243101250391. The next prime is 243101250463. The reversal of 243101250449 is 944052101342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242918865424 + 182385025 = 492868^2 + 13505^2 .

It is a cyclic number.

It is not a de Polignac number, because 243101250449 - 2⁸ = 243101250193 is a prime.

It is not a weakly prime, because it can be changed into another prime (243101250149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121550625224 + 121550625225.

It is an arithmetic number, because the mean of its divisors is an integer number (121550625225).

Almost surely, 2^243101250449 is an apocalyptic number.

It is an amenable number.

243101250449 is a deficient number, since it is larger than the sum of its proper divisors (1).

243101250449 is an equidigital number, since it uses as much as digits as its factorization.

243101250449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 243101250449 in words is "two hundred forty-three billion, one hundred one million, two hundred fifty thousand, four hundred forty-nine".