102147217517 has 8 divisors (see below), whose sum is σ = 107535946560. Its totient is φ = 96759744480.

The previous prime is 102147217511. The next prime is 102147217519. The reversal of 102147217517 is 715712741201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102147217517 - 2⁶ = 102147217453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102147217511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144713 + ... + 474590.

It is an arithmetic number, because the mean of its divisors is an integer number (13441993320).

Almost surely, 2^102147217517 is an apocalyptic number.

It is an amenable number.

102147217517 is a deficient number, since it is larger than the sum of its proper divisors (5388729043).

102147217517 is an equidigital number, since it uses as much as digits as its factorization.

102147217517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628003.

The product of its (nonzero) digits is 27440, while the sum is 38.

Adding to 102147217517 its reverse (715712741201), we get a palindrome (817859958718).

The spelling of 102147217517 in words is "one hundred two billion, one hundred forty-seven million, two hundred seventeen thousand, five hundred seventeen".