Search a number
-
+
160639 is a prime number
BaseRepresentation
bin100111001101111111
322011100121
4213031333
520120024
63235411
71236223
oct471577
9264317
10160639
11aa766
1278b67
135816b
1442783
15328e4
hex2737f

160639 has 2 divisors, whose sum is σ = 160640. Its totient is φ = 160638.

The previous prime is 160637. The next prime is 160649. The reversal of 160639 is 936061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 160639 - 21 = 160637 is a prime.

Together with 160637, it forms a pair of twin primes.

160639 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160637) 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, 80319 + 80320.

It is an arithmetic number, because the mean of its divisors is an integer number (80320).

2160639 is an apocalyptic number.

160639 is a deficient number, since it is larger than the sum of its proper divisors (1).

160639 is an equidigital number, since it uses as much as digits as its factorization.

160639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 160639 is about 400.7979540866. The cubic root of 160639 is about 54.3605277026.

The spelling of 160639 in words is "one hundred sixty thousand, six hundred thirty-nine".