136841197 has 2 divisors, whose sum is σ = 136841198. Its totient is φ = 136841196.

The previous prime is 136841167. The next prime is 136841203. The reversal of 136841197 is 791148631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107453956 + 29387241 = 10366^2 + 5421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136841197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136841167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68420598 + 68420599.

It is an arithmetic number, because the mean of its divisors is an integer number (68420599).

Almost surely, 2^136841197 is an apocalyptic number.

It is an amenable number.

136841197 is a deficient number, since it is larger than the sum of its proper divisors (1).

136841197 is an equidigital number, since it uses as much as digits as its factorization.

136841197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 136841197 is about 11697.9142157908. The cubic root of 136841197 is about 515.3144113347.

The spelling of 136841197 in words is "one hundred thirty-six million, eight hundred forty-one thousand, one hundred ninety-seven".