163741 has 2 divisors, whose sum is σ = 163742. Its totient is φ = 163740.

The previous prime is 163733. The next prime is 163753. The reversal of 163741 is 147361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99225 + 64516 = 315^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 163741 - 2³ = 163733 is a prime.

It is a super-2 number, since 2×163741² = 53622230162, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163771) 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, 81870 + 81871.

It is an arithmetic number, because the mean of its divisors is an integer number (81871).

2¹⁶³⁷⁴¹ is an apocalyptic number.

It is an amenable number.

163741 is a deficient number, since it is larger than the sum of its proper divisors (1).

163741 is an equidigital number, since it uses as much as digits as its factorization.

163741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 163741 is about 404.6492308160. The cubic root of 163741 is about 54.7082067437.

The spelling of 163741 in words is "one hundred sixty-three thousand, seven hundred forty-one".