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163973 is a prime number
BaseRepresentation
bin101000000010000101
322022221002
4220002011
520221343
63303045
71252025
oct500205
9268832
10163973
11102217
127aa85
1359834
1443a85
15338b8
hex28085

163973 has 2 divisors, whose sum is σ = 163974. Its totient is φ = 163972.

The previous prime is 163927. The next prime is 163979. The reversal of 163973 is 379361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114244 + 49729 = 338^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 163973 - 26 = 163909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81986 + 81987.

It is an arithmetic number, because the mean of its divisors is an integer number (81987).

2163973 is an apocalyptic number.

It is an amenable number.

163973 is a deficient number, since it is larger than the sum of its proper divisors (1).

163973 is an equidigital number, since it uses as much as digits as its factorization.

163973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 29.

The square root of 163973 is about 404.9357973803. The cubic root of 163973 is about 54.7340327214.

The spelling of 163973 in words is "one hundred sixty-three thousand, nine hundred seventy-three".