102112177 has 2 divisors, whose sum is σ = 102112178. Its totient is φ = 102112176.

The previous prime is 102112163. The next prime is 102112187. The reversal of 102112177 is 771211201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100821681 + 1290496 = 10041^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 102112177 - 2²³ = 93723569 is a prime.

It is not a weakly prime, because it can be changed into another prime (102112187) 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, 51056088 + 51056089.

It is an arithmetic number, because the mean of its divisors is an integer number (51056089).

Almost surely, 2^102112177 is an apocalyptic number.

It is an amenable number.

102112177 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112177 is an equidigital number, since it uses as much as digits as its factorization.

102112177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 22.

The square root of 102112177 is about 10105.0570013236. The cubic root of 102112177 is about 467.4040936840.

Adding to 102112177 its reverse (771211201), we get a palindrome (873323378).

The spelling of 102112177 in words is "one hundred two million, one hundred twelve thousand, one hundred seventy-seven".