136897 has 2 divisors, whose sum is σ = 136898. Its totient is φ = 136896.

The previous prime is 136889. The next prime is 136943. The reversal of 136897 is 798631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 33856 = 321^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 136897 - 2³ = 136889 is a prime.

It is a zygodrome in base 7.

It is not a weakly prime, because it can be changed into another prime (136397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68448 + 68449.

It is an arithmetic number, because the mean of its divisors is an integer number (68449).

2¹³⁶⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

136897 is a deficient number, since it is larger than the sum of its proper divisors (1).

136897 is an equidigital number, since it uses as much as digits as its factorization.

136897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 136897 is about 369.9959459237. The cubic root of 136897 is about 51.5384449166.

The spelling of 136897 in words is "one hundred thirty-six thousand, eight hundred ninety-seven".