196521 has 8 divisors (see below), whose sum is σ = 282240. Its totient is φ = 120912.

The previous prime is 196519. The next prime is 196523. The reversal of 196521 is 125691.

It is an interprime number because it is at equal distance from previous prime (196519) and next prime (196523).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 196521 - 2¹ = 196519 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 196491 and 196500.

It is not an unprimeable number, because it can be changed into a prime (196523) 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 7 ways as a sum of consecutive naturals, for example, 2481 + ... + 2558.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2¹⁹⁶⁵²¹ is an apocalyptic number.

It is an amenable number.

196521 is a deficient number, since it is larger than the sum of its proper divisors (85719).

196521 is a wasteful number, since it uses less digits than its factorization.

196521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055.

The product of its digits is 540, while the sum is 24.

The square root of 196521 is about 443.3068914420. The cubic root of 196521 is about 58.1392808014.

It can be divided in two parts, 196 and 521, that added together give a palindrome (717).

The spelling of 196521 in words is "one hundred ninety-six thousand, five hundred twenty-one".