87506103137 has 2 divisors, whose sum is σ = 87506103138. Its totient is φ = 87506103136.

The previous prime is 87506103133. The next prime is 87506103187. The reversal of 87506103137 is 73130160578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87464513536 + 41589601 = 295744^2 + 6449^2 .

It is a cyclic number.

It is not a de Polignac number, because 87506103137 - 2² = 87506103133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87506103094 and 87506103103.

It is not a weakly prime, because it can be changed into another prime (87506103133) 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, 43753051568 + 43753051569.

It is an arithmetic number, because the mean of its divisors is an integer number (43753051569).

Almost surely, 2^87506103137 is an apocalyptic number.

It is an amenable number.

87506103137 is a deficient number, since it is larger than the sum of its proper divisors (1).

87506103137 is an equidigital number, since it uses as much as digits as its factorization.

87506103137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 87506103137 in words is "eighty-seven billion, five hundred six million, one hundred three thousand, one hundred thirty-seven".