196445089 has 2 divisors, whose sum is σ = 196445090. Its totient is φ = 196445088.

The previous prime is 196445087. The next prime is 196445129. The reversal of 196445089 is 980544691.

It is a happy number.

196445089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185422689 + 11022400 = 13617^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 196445089 - 2¹ = 196445087 is a prime.

Together with 196445087, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196445087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98222544 + 98222545.

It is an arithmetic number, because the mean of its divisors is an integer number (98222545).

Almost surely, 2^196445089 is an apocalyptic number.

It is an amenable number.

196445089 is a deficient number, since it is larger than the sum of its proper divisors (1).

196445089 is an equidigital number, since it uses as much as digits as its factorization.

196445089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 196445089 is about 14015.8870215195. The cubic root of 196445089 is about 581.3179393512.

The spelling of 196445089 in words is "one hundred ninety-six million, four hundred forty-five thousand, eighty-nine".