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163884493 is a prime number
BaseRepresentation
bin10011100010010…
…10110111001101
3102102101012021001
421301022313031
5313423300433
624132340301
74026665233
oct1161126715
9372335231
10163884493
1184565933
1246a74691
1327c50896
1417aa0953
15e5c357d
hex9c4adcd

163884493 has 2 divisors, whose sum is σ = 163884494. Its totient is φ = 163884492.

The previous prime is 163884463. The next prime is 163884509. The reversal of 163884493 is 394488361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118766404 + 45118089 = 10898^2 + 6717^2 .

It is a cyclic number.

It is not a de Polignac number, because 163884493 - 225 = 130330061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163884463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81942246 + 81942247.

It is an arithmetic number, because the mean of its divisors is an integer number (81942247).

Almost surely, 2163884493 is an apocalyptic number.

It is an amenable number.

163884493 is a deficient number, since it is larger than the sum of its proper divisors (1).

163884493 is an equidigital number, since it uses as much as digits as its factorization.

163884493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 46.

The square root of 163884493 is about 12801.7378898336. The cubic root of 163884493 is about 547.2418309794.

The spelling of 163884493 in words is "one hundred sixty-three million, eight hundred eighty-four thousand, four hundred ninety-three".