Search a number
-
+
166031 is a prime number
BaseRepresentation
bin101000100010001111
322102202022
4220202033
520303111
63320355
71261025
oct504217
9272668
10166031
11103818
12800bb
135a758
1444715
15342db
hex2888f

166031 has 2 divisors, whose sum is σ = 166032. Its totient is φ = 166030.

The previous prime is 166027. The next prime is 166043. The reversal of 166031 is 130661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166031 - 22 = 166027 is a prime.

It is a super-2 number, since 2×1660312 = 55132585922, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83015 + 83016.

It is an arithmetic number, because the mean of its divisors is an integer number (83016).

2166031 is an apocalyptic number.

166031 is a deficient number, since it is larger than the sum of its proper divisors (1).

166031 is an equidigital number, since it uses as much as digits as its factorization.

166031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 166031 is about 407.4690172271. The cubic root of 166031 is about 54.9620675086.

Adding to 166031 its reverse (130661), we get a palindrome (296692).

The spelling of 166031 in words is "one hundred sixty-six thousand, thirty-one".