135197 has 2 divisors, whose sum is σ = 135198. Its totient is φ = 135196.

The previous prime is 135193. The next prime is 135209. The reversal of 135197 is 791531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89401 + 45796 = 299^2 + 214^2 .

It is a cyclic number.

It is not a de Polignac number, because 135197 - 2² = 135193 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67598 + 67599.

It is an arithmetic number, because the mean of its divisors is an integer number (67599).

2¹³⁵¹⁹⁷ is an apocalyptic number.

It is an amenable number.

135197 is a deficient number, since it is larger than the sum of its proper divisors (1).

135197 is an equidigital number, since it uses as much as digits as its factorization.

135197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 945, while the sum is 26.

The square root of 135197 is about 367.6914467322. The cubic root of 135197 is about 51.3242192548.

The spelling of 135197 in words is "one hundred thirty-five thousand, one hundred ninety-seven".