102179617 has 2 divisors, whose sum is σ = 102179618. Its totient is φ = 102179616.

The previous prime is 102179611. The next prime is 102179621. The reversal of 102179617 is 716971201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100080016 + 2099601 = 10004^2 + 1449^2 .

It is an emirp because it is prime and its reverse (716971201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102179617 is a prime.

It is not a weakly prime, because it can be changed into another prime (102179611) 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, 51089808 + 51089809.

It is an arithmetic number, because the mean of its divisors is an integer number (51089809).

Almost surely, 2^102179617 is an apocalyptic number.

It is an amenable number.

102179617 is a deficient number, since it is larger than the sum of its proper divisors (1).

102179617 is an equidigital number, since it uses as much as digits as its factorization.

102179617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 102179617 is about 10108.3933936111. The cubic root of 102179617 is about 467.5069700697.

The spelling of 102179617 in words is "one hundred two million, one hundred seventy-nine thousand, six hundred seventeen".