201340387 has 2 divisors, whose sum is σ = 201340388. Its totient is φ = 201340386.

The previous prime is 201340379. The next prime is 201340429. The reversal of 201340387 is 783043102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201340387 - 2³ = 201340379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201340327) 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, 100670193 + 100670194.

It is an arithmetic number, because the mean of its divisors is an integer number (100670194).

Almost surely, 2^201340387 is an apocalyptic number.

201340387 is a deficient number, since it is larger than the sum of its proper divisors (1).

201340387 is an equidigital number, since it uses as much as digits as its factorization.

201340387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 201340387 is about 14189.4463246457. The cubic root of 201340387 is about 586.1070783604.

Adding to 201340387 its reverse (783043102), we get a palindrome (984383489).

The spelling of 201340387 in words is "two hundred one million, three hundred forty thousand, three hundred eighty-seven".