2000900197 has 2 divisors, whose sum is σ = 2000900198. Its totient is φ = 2000900196.

The previous prime is 2000900191. The next prime is 2000900227. The reversal of 2000900197 is 7910090002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1992640321 + 8259876 = 44639^2 + 2874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000900197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000900191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000450098 + 1000450099.

It is an arithmetic number, because the mean of its divisors is an integer number (1000450099).

Almost surely, 2^2000900197 is an apocalyptic number.

It is an amenable number.

2000900197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000900197 is an equidigital number, since it uses as much as digits as its factorization.

2000900197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 2000900197 is about 44731.4229261713. The cubic root of 2000900197 is about 1260.1100510662.

Adding to 2000900197 its reverse (7910090002), we get a palindrome (9910990199).

The spelling of 2000900197 in words is "two billion, nine hundred thousand, one hundred ninety-seven".