332161 has 2 divisors, whose sum is σ = 332162. Its totient is φ = 332160.
The previous prime is 332159. The next prime is 332179. The reversal of 332161 is 161233.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 230400 + 101761 = 480^2 + 319^2 .
It is an emirp because it is prime and its reverse (161233) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 332161 - 21 = 332159 is a prime.
It is a super-2 number, since 2×3321612 = 220661859842, which contains 22 as substring.
Together with 332159, it forms a pair of twin primes.
332161 is a lucky number.
It is a plaindrome in base 9.
It is not a weakly prime, because it can be changed into another prime (332191) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166080 + 166081.
It is an arithmetic number, because the mean of its divisors is an integer number (166081).
2332161 is an apocalyptic number.
It is an amenable number.
332161 is a deficient number, since it is larger than the sum of its proper divisors (1).
332161 is an equidigital number, since it uses as much as digits as its factorization.
332161 is an evil number, because the sum of its binary digits is even.
The product of its digits is 108, while the sum is 16.
The square root of 332161 is about 576.3341044915. The cubic root of 332161 is about 69.2547469019.
Adding to 332161 its reverse (161233), we get a palindrome (493394).
The spelling of 332161 in words is "three hundred thirty-two thousand, one hundred sixty-one".
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