201497 has 2 divisors, whose sum is σ = 201498. Its totient is φ = 201496.

The previous prime is 201493. The next prime is 201499. The reversal of 201497 is 794102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151321 + 50176 = 389^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 201497 - 2² = 201493 is a prime.

Together with 201499, it forms a pair of twin primes.

It is a Chen prime.

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, 100748 + 100749.

It is an arithmetic number, because the mean of its divisors is an integer number (100749).

2²⁰¹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

201497 is a deficient number, since it is larger than the sum of its proper divisors (1).

201497 is an equidigital number, since it uses as much as digits as its factorization.

201497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 201497 is about 448.8841721424. The cubic root of 201497 is about 58.6259007140.

Adding to 201497 its reverse (794102), we get a palindrome (995599).

The spelling of 201497 in words is "two hundred one thousand, four hundred ninety-seven".