168481 has 2 divisors, whose sum is σ = 168482. Its totient is φ = 168480.

The previous prime is 168463. The next prime is 168491. The reversal of 168481 is 184861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147456 + 21025 = 384^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 168481 - 2⁵ = 168449 is a prime.

It is a super-2 number, since 2×168481² = 56771694722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84240 + 84241.

It is an arithmetic number, because the mean of its divisors is an integer number (84241).

2¹⁶⁸⁴⁸¹ is an apocalyptic number.

It is an amenable number.

168481 is a deficient number, since it is larger than the sum of its proper divisors (1).

168481 is an equidigital number, since it uses as much as digits as its factorization.

168481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 28.

The square root of 168481 is about 410.4643711700. The cubic root of 168481 is about 55.2310937680.

It can be divided in two parts, 168 and 481, that multiplied together give a palindrome (80808).

The spelling of 168481 in words is "one hundred sixty-eight thousand, four hundred eighty-one".