196332121 has 2 divisors, whose sum is σ = 196332122. Its totient is φ = 196332120.

The previous prime is 196332119. The next prime is 196332139. The reversal of 196332121 is 121233691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195692121 + 640000 = 13989^2 + 800^2 .

It is an emirp because it is prime and its reverse (121233691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196332121 - 2¹ = 196332119 is a prime.

Together with 196332119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 196332121.

It is not a weakly prime, because it can be changed into another prime (196332151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98166060 + 98166061.

It is an arithmetic number, because the mean of its divisors is an integer number (98166061).

Almost surely, 2^196332121 is an apocalyptic number.

It is an amenable number.

196332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

196332121 is an equidigital number, since it uses as much as digits as its factorization.

196332121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 196332121 is about 14011.8564437408. The cubic root of 196332121 is about 581.2064868031.

The spelling of 196332121 in words is "one hundred ninety-six million, three hundred thirty-two thousand, one hundred twenty-one".