196560649 has 2 divisors, whose sum is σ = 196560650. Its totient is φ = 196560648.

The previous prime is 196560629. The next prime is 196560667. The reversal of 196560649 is 946065691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123765625 + 72795024 = 11125^2 + 8532^2 .

It is a cyclic number.

It is not a de Polignac number, because 196560649 - 2¹⁹ = 196036361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196560599 and 196560608.

It is not a weakly prime, because it can be changed into another prime (196560629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98280324 + 98280325.

It is an arithmetic number, because the mean of its divisors is an integer number (98280325).

Almost surely, 2^196560649 is an apocalyptic number.

It is an amenable number.

196560649 is a deficient number, since it is larger than the sum of its proper divisors (1).

196560649 is an equidigital number, since it uses as much as digits as its factorization.

196560649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 196560649 is about 14020.0088801684. The cubic root of 196560649 is about 581.4319049268.

The spelling of 196560649 in words is "one hundred ninety-six million, five hundred sixty thousand, six hundred forty-nine".