168132641 has 2 divisors, whose sum is σ = 168132642. Its totient is φ = 168132640.

The previous prime is 168132617. The next prime is 168132667. The reversal of 168132641 is 146231861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120121600 + 48011041 = 10960^2 + 6929^2 .

It is a cyclic number.

It is not a de Polignac number, because 168132641 - 2²² = 163938337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168132598 and 168132607.

It is not a weakly prime, because it can be changed into another prime (168131641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84066320 + 84066321.

It is an arithmetic number, because the mean of its divisors is an integer number (84066321).

Almost surely, 2^168132641 is an apocalyptic number.

It is an amenable number.

168132641 is a deficient number, since it is larger than the sum of its proper divisors (1).

168132641 is an equidigital number, since it uses as much as digits as its factorization.

168132641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 168132641 is about 12966.5971249206. The cubic root of 168132641 is about 551.9300139252.

The spelling of 168132641 in words is "one hundred sixty-eight million, one hundred thirty-two thousand, six hundred forty-one".