102001517 has 2 divisors, whose sum is σ = 102001518. Its totient is φ = 102001516.

The previous prime is 102001507. The next prime is 102001531. The reversal of 102001517 is 715100201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90516196 + 11485321 = 9514^2 + 3389^2 .

It is an emirp because it is prime and its reverse (715100201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102001517 - 2⁶ = 102001453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102001495 and 102001504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102001507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000758 + 51000759.

It is an arithmetic number, because the mean of its divisors is an integer number (51000759).

Almost surely, 2^102001517 is an apocalyptic number.

It is an amenable number.

102001517 is a deficient number, since it is larger than the sum of its proper divisors (1).

102001517 is an equidigital number, since it uses as much as digits as its factorization.

102001517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 102001517 is about 10099.5800407740. The cubic root of 102001517 is about 467.2351891386.

Adding to 102001517 its reverse (715100201), we get a palindrome (817101718).

The spelling of 102001517 in words is "one hundred two million, one thousand, five hundred seventeen".