201306493 has 2 divisors, whose sum is σ = 201306494. Its totient is φ = 201306492.

The previous prime is 201306481. The next prime is 201306509. The reversal of 201306493 is 394603102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147914244 + 53392249 = 12162^2 + 7307^2 .

It is a cyclic number.

It is not a de Polignac number, because 201306493 - 2¹³ = 201298301 is a prime.

It is a super-3 number, since 3×201306493³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201301493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100653246 + 100653247.

It is an arithmetic number, because the mean of its divisors is an integer number (100653247).

Almost surely, 2^201306493 is an apocalyptic number.

It is an amenable number.

201306493 is a deficient number, since it is larger than the sum of its proper divisors (1).

201306493 is an equidigital number, since it uses as much as digits as its factorization.

201306493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 201306493 is about 14188.2519360209. The cubic root of 201306493 is about 586.0741877443.

Adding to 201306493 its reverse (394603102), we get a palindrome (595909595).

The spelling of 201306493 in words is "two hundred one million, three hundred six thousand, four hundred ninety-three".