201402197 has 2 divisors, whose sum is σ = 201402198. Its totient is φ = 201402196.

The previous prime is 201402169. The next prime is 201402199. The reversal of 201402197 is 791204102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129254161 + 72148036 = 11369^2 + 8494^2 .

It is a cyclic number.

It is not a de Polignac number, because 201402197 - 2¹⁸ = 201140053 is a prime.

Together with 201402199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201402199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100701098 + 100701099.

It is an arithmetic number, because the mean of its divisors is an integer number (100701099).

Almost surely, 2^201402197 is an apocalyptic number.

It is an amenable number.

201402197 is a deficient number, since it is larger than the sum of its proper divisors (1).

201402197 is an equidigital number, since it uses as much as digits as its factorization.

201402197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 201402197 is about 14191.6241847084. The cubic root of 201402197 is about 586.1670490606.

Adding to 201402197 its reverse (791204102), we get a palindrome (992606299).

The spelling of 201402197 in words is "two hundred one million, four hundred two thousand, one hundred ninety-seven".