196306321 has 8 divisors (see below), whose sum is σ = 198788040. Its totient is φ = 193830912.

The previous prime is 196306303. The next prime is 196306333. The reversal of 196306321 is 123603691.

It can be written as a sum of positive squares in 4 ways, for example, as 60840000 + 135466321 = 7800^2 + 11639^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 196306321 - 2¹⁹ = 195782033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196306391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101661 + ... + 103573.

It is an arithmetic number, because the mean of its divisors is an integer number (24848505).

Almost surely, 2^196306321 is an apocalyptic number.

It is an amenable number.

196306321 is a deficient number, since it is larger than the sum of its proper divisors (2481719).

196306321 is a wasteful number, since it uses less digits than its factorization.

196306321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 196306321 is about 14010.9357646090. The cubic root of 196306321 is about 581.1810269104.

The spelling of 196306321 in words is "one hundred ninety-six million, three hundred six thousand, three hundred twenty-one".