201340247 has 2 divisors, whose sum is σ = 201340248. Its totient is φ = 201340246.

The previous prime is 201340241. The next prime is 201340253. The reversal of 201340247 is 742043102.

It is a balanced prime because it is at equal distance from previous prime (201340241) and next prime (201340253).

It is a cyclic number.

It is not a de Polignac number, because 201340247 - 2⁸ = 201339991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201340241) 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, 100670123 + 100670124.

It is an arithmetic number, because the mean of its divisors is an integer number (100670124).

Almost surely, 2^201340247 is an apocalyptic number.

201340247 is a deficient number, since it is larger than the sum of its proper divisors (1).

201340247 is an equidigital number, since it uses as much as digits as its factorization.

201340247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 201340247 is about 14189.4413914009. The cubic root of 201340247 is about 586.1069425125.

Adding to 201340247 its reverse (742043102), we get a palindrome (943383349).

The spelling of 201340247 in words is "two hundred one million, three hundred forty thousand, two hundred forty-seven".