65197 has 4 divisors (see below), whose sum is σ = 71136. Its totient is φ = 59260.

The previous prime is 65183. The next prime is 65203. The reversal of 65197 is 79156.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65197 - 2¹¹ = 63149 is a prime.

It is a Duffinian number.

65197 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2953 + ... + 2974.

It is an arithmetic number, because the mean of its divisors is an integer number (17784).

2⁶⁵¹⁹⁷ is an apocalyptic number.

It is an amenable number.

65197 is a deficient number, since it is larger than the sum of its proper divisors (5939).

65197 is a wasteful number, since it uses less digits than its factorization.

65197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938.

The product of its digits is 1890, while the sum is 28.

The square root of 65197 is about 255.3370321751. The cubic root of 65197 is about 40.2478362583.

It can be divided in two parts, 65 and 197, that added together give a palindrome (262).

The spelling of 65197 in words is "sixty-five thousand, one hundred ninety-seven".