102018193 has 2 divisors, whose sum is σ = 102018194. Its totient is φ = 102018192.

The previous prime is 102018121. The next prime is 102018199. The reversal of 102018193 is 391810201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96668224 + 5349969 = 9832^2 + 2313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102018193 is a prime.

It is not a weakly prime, because it can be changed into another prime (102018199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51009096 + 51009097.

It is an arithmetic number, because the mean of its divisors is an integer number (51009097).

Almost surely, 2^102018193 is an apocalyptic number.

It is an amenable number.

102018193 is a deficient number, since it is larger than the sum of its proper divisors (1).

102018193 is an equidigital number, since it uses as much as digits as its factorization.

102018193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 102018193 is about 10100.4055859158. The cubic root of 102018193 is about 467.2606501634.

Adding to 102018193 its reverse (391810201), we get a palindrome (493828394).

The spelling of 102018193 in words is "one hundred two million, eighteen thousand, one hundred ninety-three".