201493 has 2 divisors, whose sum is σ = 201494. Its totient is φ = 201492.

The previous prime is 201491. The next prime is 201497. The reversal of 201493 is 394102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178084 + 23409 = 422^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 201493 - 2¹ = 201491 is a prime.

Together with 201491, it forms a pair of twin primes.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 201493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100746 + 100747.

It is an arithmetic number, because the mean of its divisors is an integer number (100747).

2²⁰¹⁴⁹³ is an apocalyptic number.

It is an amenable number.

201493 is a deficient number, since it is larger than the sum of its proper divisors (1).

201493 is an equidigital number, since it uses as much as digits as its factorization.

201493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 201493 is about 448.8797166280. The cubic root of 201493 is about 58.6255127758.

Adding to 201493 its reverse (394102), we get a palindrome (595595).

The spelling of 201493 in words is "two hundred one thousand, four hundred ninety-three".