168538763 has 2 divisors, whose sum is σ = 168538764. Its totient is φ = 168538762.

The previous prime is 168538739. The next prime is 168538787. The reversal of 168538763 is 367835861.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (168538739) and next prime (168538787).

It is an emirp because it is prime and its reverse (367835861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168538763 - 2⁸ = 168538507 is a prime.

It is not a weakly prime, because it can be changed into another prime (168538793) 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, 84269381 + 84269382.

It is an arithmetic number, because the mean of its divisors is an integer number (84269382).

Almost surely, 2^168538763 is an apocalyptic number.

168538763 is a deficient number, since it is larger than the sum of its proper divisors (1).

168538763 is an equidigital number, since it uses as much as digits as its factorization.

168538763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 168538763 is about 12982.2479948582. The cubic root of 168538763 is about 552.3740496258.

The spelling of 168538763 in words is "one hundred sixty-eight million, five hundred thirty-eight thousand, seven hundred sixty-three".