201045729517 has 2 divisors, whose sum is σ = 201045729518. Its totient is φ = 201045729516.

The previous prime is 201045729487. The next prime is 201045729557. The reversal of 201045729517 is 715927540102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181453848676 + 19591880841 = 425974^2 + 139971^2 .

It is a cyclic number.

It is not a de Polignac number, because 201045729517 - 2¹¹ = 201045727469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201045729557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100522864758 + 100522864759.

It is an arithmetic number, because the mean of its divisors is an integer number (100522864759).

Almost surely, 2^201045729517 is an apocalyptic number.

It is an amenable number.

201045729517 is a deficient number, since it is larger than the sum of its proper divisors (1).

201045729517 is an equidigital number, since it uses as much as digits as its factorization.

201045729517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 201045729517 in words is "two hundred one billion, forty-five million, seven hundred twenty-nine thousand, five hundred seventeen".