172487137103 has 2 divisors, whose sum is σ = 172487137104. Its totient is φ = 172487137102.

The previous prime is 172487137079. The next prime is 172487137187. The reversal of 172487137103 is 301731784271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172487137103 - 2¹⁶ = 172487071567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172487137003) 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, 86243568551 + 86243568552.

It is an arithmetic number, because the mean of its divisors is an integer number (86243568552).

Almost surely, 2^172487137103 is an apocalyptic number.

172487137103 is a deficient number, since it is larger than the sum of its proper divisors (1).

172487137103 is an equidigital number, since it uses as much as digits as its factorization.

172487137103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 172487137103 in words is "one hundred seventy-two billion, four hundred eighty-seven million, one hundred thirty-seven thousand, one hundred three".