136733897 has 2 divisors, whose sum is σ = 136733898. Its totient is φ = 136733896.

The previous prime is 136733867. The next prime is 136733917. The reversal of 136733897 is 798337631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108388921 + 28344976 = 10411^2 + 5324^2 .

It is a cyclic number.

It is not a de Polignac number, because 136733897 - 2²⁰ = 135685321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136733867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68366948 + 68366949.

It is an arithmetic number, because the mean of its divisors is an integer number (68366949).

Almost surely, 2^136733897 is an apocalyptic number.

It is an amenable number.

136733897 is a deficient number, since it is larger than the sum of its proper divisors (1).

136733897 is an equidigital number, since it uses as much as digits as its factorization.

136733897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 136733897 is about 11693.3270286946. The cubic root of 136733897 is about 515.1796865685.

The spelling of 136733897 in words is "one hundred thirty-six million, seven hundred thirty-three thousand, eight hundred ninety-seven".