194883653 has 2 divisors, whose sum is σ = 194883654. Its totient is φ = 194883652.

The previous prime is 194883649. The next prime is 194883673. The reversal of 194883653 is 356388491.

194883653 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., 121044004 + 73839649 = 11002^2 + 8593^2 .

It is a cyclic number.

It is not a de Polignac number, because 194883653 - 2² = 194883649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 194883598 and 194883607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194883613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97441826 + 97441827.

It is an arithmetic number, because the mean of its divisors is an integer number (97441827).

Almost surely, 2^194883653 is an apocalyptic number.

It is an amenable number.

194883653 is a deficient number, since it is larger than the sum of its proper divisors (1).

194883653 is an equidigital number, since it uses as much as digits as its factorization.

194883653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 194883653 is about 13960.0735313250. The cubic root of 194883653 is about 579.7736463149.

The spelling of 194883653 in words is "one hundred ninety-four million, eight hundred eighty-three thousand, six hundred fifty-three".