200000001947 has 2 divisors, whose sum is σ = 200000001948. Its totient is φ = 200000001946.

The previous prime is 200000001941. The next prime is 200000001959. The reversal of 200000001947 is 749100000002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200000001947 - 2²⁴ = 199983224731 is a prime.

It is not a weakly prime, because it can be changed into another prime (200000001941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100000000973 + 100000000974.

It is an arithmetic number, because the mean of its divisors is an integer number (100000000974).

Almost surely, 2^200000001947 is an apocalyptic number.

200000001947 is a deficient number, since it is larger than the sum of its proper divisors (1).

200000001947 is an equidigital number, since it uses as much as digits as its factorization.

200000001947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 200000001947 its reverse (749100000002), we get a palindrome (949100001949).

The spelling of 200000001947 in words is "two hundred billion, one thousand, nine hundred forty-seven".