243102032497 has 2 divisors, whose sum is σ = 243102032498. Its totient is φ = 243102032496.

The previous prime is 243102032461. The next prime is 243102032513. The reversal of 243102032497 is 794230201342.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156633101361 + 86468931136 = 395769^2 + 294056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243102032497 is a prime.

It is not a weakly prime, because it can be changed into another prime (243102032417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121551016248 + 121551016249.

It is an arithmetic number, because the mean of its divisors is an integer number (121551016249).

Almost surely, 2^243102032497 is an apocalyptic number.

It is an amenable number.

243102032497 is a deficient number, since it is larger than the sum of its proper divisors (1).

243102032497 is an equidigital number, since it uses as much as digits as its factorization.

243102032497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 243102032497 in words is "two hundred forty-three billion, one hundred two million, thirty-two thousand, four hundred ninety-seven".