102171079 has 2 divisors, whose sum is σ = 102171080. Its totient is φ = 102171078.

The previous prime is 102171001. The next prime is 102171107. The reversal of 102171079 is 970171201.

It is an a-pointer prime, because the next prime (102171107) can be obtained adding 102171079 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102171079 - 2⁷ = 102170951 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102171679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51085539 + 51085540.

It is an arithmetic number, because the mean of its divisors is an integer number (51085540).

Almost surely, 2^102171079 is an apocalyptic number.

102171079 is a deficient number, since it is larger than the sum of its proper divisors (1).

102171079 is an equidigital number, since it uses as much as digits as its factorization.

102171079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 102171079 is about 10107.9710624833. The cubic root of 102171079 is about 467.4939482759.

The spelling of 102171079 in words is "one hundred two million, one hundred seventy-one thousand, seventy-nine".