102643207 has 2 divisors, whose sum is σ = 102643208. Its totient is φ = 102643206.

The previous prime is 102643141. The next prime is 102643237. The reversal of 102643207 is 702346201.

It is a strong prime.

It is an emirp because it is prime and its reverse (702346201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102643207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102643237) 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 as a sum of consecutive naturals, namely, 51321603 + 51321604.

It is an arithmetic number, because the mean of its divisors is an integer number (51321604).

Almost surely, 2^102643207 is an apocalyptic number.

102643207 is a deficient number, since it is larger than the sum of its proper divisors (1).

102643207 is an equidigital number, since it uses as much as digits as its factorization.

102643207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 102643207 is about 10131.2983866827. The cubic root of 102643207 is about 468.2129315101.

Adding to 102643207 its reverse (702346201), we get a palindrome (804989408).

The spelling of 102643207 in words is "one hundred two million, six hundred forty-three thousand, two hundred seven".