105987248987 has 2 divisors, whose sum is σ = 105987248988. Its totient is φ = 105987248986.

The previous prime is 105987248977. The next prime is 105987248989. The reversal of 105987248987 is 789842789501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105987248987 - 2³⁶ = 37267772251 is a prime.

It is a super-2 number, since 2×105987248987² (a number of 23 digits) contains 22 as substring.

Together with 105987248989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105987248989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52993624493 + 52993624494.

It is an arithmetic number, because the mean of its divisors is an integer number (52993624494).

Almost surely, 2^105987248987 is an apocalyptic number.

105987248987 is a deficient number, since it is larger than the sum of its proper divisors (1).

105987248987 is an equidigital number, since it uses as much as digits as its factorization.

105987248987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81285120, while the sum is 68.

The spelling of 105987248987 in words is "one hundred five billion, nine hundred eighty-seven million, two hundred forty-eight thousand, nine hundred eighty-seven".