2000040197 has 2 divisors, whose sum is σ = 2000040198. Its totient is φ = 2000040196.

The previous prime is 2000040193. The next prime is 2000040221. The reversal of 2000040197 is 7910400002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1051769761 + 948270436 = 32431^2 + 30794^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000040197 - 2² = 2000040193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000040193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000020098 + 1000020099.

It is an arithmetic number, because the mean of its divisors is an integer number (1000020099).

Almost surely, 2^2000040197 is an apocalyptic number.

It is an amenable number.

2000040197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000040197 is an equidigital number, since it uses as much as digits as its factorization.

2000040197 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.

The square root of 2000040197 is about 44721.8089638601. The cubic root of 2000040197 is about 1259.9294906794.

Adding to 2000040197 its reverse (7910400002), we get a palindrome (9910440199).

The spelling of 2000040197 in words is "two billion, forty thousand, one hundred ninety-seven".