196505 has 4 divisors (see below), whose sum is σ = 235812. Its totient is φ = 157200.

The previous prime is 196501. The next prime is 196519. The reversal of 196505 is 505691.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 132496 = 253^2 + 364^2 .

It is not a de Polignac number, because 196505 - 2² = 196501 is a prime.

It is a super-2 number, since 2×196505² = 77228430050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196501) 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 in 3 ways as a sum of consecutive naturals, for example, 19646 + ... + 19655.

It is an arithmetic number, because the mean of its divisors is an integer number (58953).

2¹⁹⁶⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

196505 is a deficient number, since it is larger than the sum of its proper divisors (39307).

196505 is an equidigital number, since it uses as much as digits as its factorization.

196505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39306.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 196505 is about 443.2888448856. The cubic root of 196505 is about 58.1377029314.

The spelling of 196505 in words is "one hundred ninety-six thousand, five hundred five".