102159634987 has 2 divisors, whose sum is σ = 102159634988. Its totient is φ = 102159634986.

The previous prime is 102159634979. The next prime is 102159635027. The reversal of 102159634987 is 789436951201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102159634987 - 2³ = 102159634979 is a prime.

It is not a weakly prime, because it can be changed into another prime (102159634937) 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, 51079817493 + 51079817494.

It is an arithmetic number, because the mean of its divisors is an integer number (51079817494).

It is a 1-persistent number, because it is pandigital, but 2⋅102159634987 = 204319269974 is not.

Almost surely, 2^102159634987 is an apocalyptic number.

102159634987 is a deficient number, since it is larger than the sum of its proper divisors (1).

102159634987 is an equidigital number, since it uses as much as digits as its factorization.

102159634987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 102159634987 in words is "one hundred two billion, one hundred fifty-nine million, six hundred thirty-four thousand, nine hundred eighty-seven".