200102197 has 4 divisors (see below), whose sum is σ = 201207916. Its totient is φ = 198996480.

The previous prime is 200102153. The next prime is 200102209. The reversal of 200102197 is 791201002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25492401 + 174609796 = 5049^2 + 13214^2 .

It is a cyclic number.

It is not a de Polignac number, because 200102197 - 2²³ = 191713589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200102297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552588 + ... + 552949.

It is an arithmetic number, because the mean of its divisors is an integer number (50301979).

Almost surely, 2^200102197 is an apocalyptic number.

It is an amenable number.

200102197 is a deficient number, since it is larger than the sum of its proper divisors (1105719).

200102197 is a wasteful number, since it uses less digits than its factorization.

200102197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105718.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 200102197 is about 14145.7483718607. The cubic root of 200102197 is about 584.9031392948.

Adding to 200102197 its reverse (791201002), we get a palindrome (991303199).

The spelling of 200102197 in words is "two hundred million, one hundred two thousand, one hundred ninety-seven".