102716639 has 2 divisors, whose sum is σ = 102716640. Its totient is φ = 102716638.

The previous prime is 102716599. The next prime is 102716651. The reversal of 102716639 is 936617201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102716639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102716599 and 102716608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102716659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51358319 + 51358320.

It is an arithmetic number, because the mean of its divisors is an integer number (51358320).

Almost surely, 2^102716639 is an apocalyptic number.

102716639 is a deficient number, since it is larger than the sum of its proper divisors (1).

102716639 is an equidigital number, since it uses as much as digits as its factorization.

102716639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 102716639 is about 10134.9217559881. The cubic root of 102716639 is about 468.3245596676.

The spelling of 102716639 in words is "one hundred two million, seven hundred sixteen thousand, six hundred thirty-nine".