102052217 has 8 divisors (see below), whose sum is σ = 105460992. Its totient is φ = 98650800.

The previous prime is 102052199. The next prime is 102052243. The reversal of 102052217 is 712250201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102052217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102052267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49742 + ... + 51752.

It is an arithmetic number, because the mean of its divisors is an integer number (13182624).

Almost surely, 2^102052217 is an apocalyptic number.

It is an amenable number.

102052217 is a deficient number, since it is larger than the sum of its proper divisors (3408775).

102052217 is a wasteful number, since it uses less digits than its factorization.

102052217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 102052217 is about 10102.0897343075. The cubic root of 102052217 is about 467.3125896225.

The spelling of 102052217 in words is "one hundred two million, fifty-two thousand, two hundred seventeen".