196081 has 2 divisors, whose sum is σ = 196082. Its totient is φ = 196080.

The previous prime is 196073. The next prime is 196087. The reversal of 196081 is 180691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194481 + 1600 = 441^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 196081 - 2³ = 196073 is a prime.

It is a super-2 number, since 2×196081² = 76895517122, which contains 22 as substring.

It is equal to p₁₇₆₆₅ and since 196081 and 17665 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 7.

It is a zygodrome in base 5.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196087) 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, 98040 + 98041.

It is an arithmetic number, because the mean of its divisors is an integer number (98041).

2¹⁹⁶⁰⁸¹ is an apocalyptic number.

It is an amenable number.

196081 is a deficient number, since it is larger than the sum of its proper divisors (1).

196081 is an equidigital number, since it uses as much as digits as its factorization.

196081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 196081 is about 442.8103431493. The cubic root of 196081 is about 58.0958581323.

The spelling of 196081 in words is "one hundred ninety-six thousand, eighty-one".