102294217 has 2 divisors, whose sum is σ = 102294218. Its totient is φ = 102294216.

The previous prime is 102294209. The next prime is 102294229. The reversal of 102294217 is 712492201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102090816 + 203401 = 10104^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 102294217 - 2³ = 102294209 is a prime.

It is not a weakly prime, because it can be changed into another prime (102295217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51147108 + 51147109.

It is an arithmetic number, because the mean of its divisors is an integer number (51147109).

Almost surely, 2^102294217 is an apocalyptic number.

It is an amenable number.

102294217 is a deficient number, since it is larger than the sum of its proper divisors (1).

102294217 is an equidigital number, since it uses as much as digits as its factorization.

102294217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 102294217 is about 10114.0603616945. The cubic root of 102294217 is about 467.6816829372.

Subtracting from 102294217 its product of nonzero digits (2016), we obtain a palindrome (102292201).

The spelling of 102294217 in words is "one hundred two million, two hundred ninety-four thousand, two hundred seventeen".