196146649 has 2 divisors, whose sum is σ = 196146650. Its totient is φ = 196146648.

The previous prime is 196146631. The next prime is 196146673. The reversal of 196146649 is 946641691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173106649 + 23040000 = 13157^2 + 4800^2 .

It is an emirp because it is prime and its reverse (946641691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196146649 - 2¹¹ = 196144601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196146599 and 196146608.

It is not a weakly prime, because it can be changed into another prime (196146619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98073324 + 98073325.

It is an arithmetic number, because the mean of its divisors is an integer number (98073325).

Almost surely, 2^196146649 is an apocalyptic number.

It is an amenable number.

196146649 is a deficient number, since it is larger than the sum of its proper divisors (1).

196146649 is an equidigital number, since it uses as much as digits as its factorization.

196146649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 196146649 is about 14005.2364849723. The cubic root of 196146649 is about 581.0234101340.

The spelling of 196146649 in words is "one hundred ninety-six million, one hundred forty-six thousand, six hundred forty-nine".