102105017 has 4 divisors (see below), whose sum is σ = 116691456. Its totient is φ = 87518580.

The previous prime is 102105007. The next prime is 102105019. The reversal of 102105017 is 710501201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 710501201 = 181 ⋅3925421.

It is a cyclic number.

It is not a de Polignac number, because 102105017 - 2²⁰ = 101056441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102104986 and 102105004.

It is not an unprimeable number, because it can be changed into a prime (102105019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7293209 + ... + 7293222.

It is an arithmetic number, because the mean of its divisors is an integer number (29172864).

Almost surely, 2^102105017 is an apocalyptic number.

It is an amenable number.

102105017 is a deficient number, since it is larger than the sum of its proper divisors (14586439).

102105017 is an equidigital number, since it uses as much as digits as its factorization.

102105017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14586438.

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

The square root of 102105017 is about 10104.7027170521. The cubic root of 102105017 is about 467.3931687985.

Adding to 102105017 its reverse (710501201), we get a palindrome (812606218).

The spelling of 102105017 in words is "one hundred two million, one hundred five thousand, seventeen".