203132197 has 2 divisors, whose sum is σ = 203132198. Its totient is φ = 203132196.

The previous prime is 203132191. The next prime is 203132213. The reversal of 203132197 is 791231302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110376036 + 92756161 = 10506^2 + 9631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203132197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203132191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101566098 + 101566099.

It is an arithmetic number, because the mean of its divisors is an integer number (101566099).

Almost surely, 2^203132197 is an apocalyptic number.

It is an amenable number.

203132197 is a deficient number, since it is larger than the sum of its proper divisors (1).

203132197 is an equidigital number, since it uses as much as digits as its factorization.

203132197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 203132197 is about 14252.4452989654. The cubic root of 203132197 is about 587.8406144352.

Adding to 203132197 its reverse (791231302), we get a palindrome (994363499).

The spelling of 203132197 in words is "two hundred three million, one hundred thirty-two thousand, one hundred ninety-seven".