136747277 has 2 divisors, whose sum is σ = 136747278. Its totient is φ = 136747276.

The previous prime is 136747271. The next prime is 136747319. The reversal of 136747277 is 772747631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96157636 + 40589641 = 9806^2 + 6371^2 .

It is a cyclic number.

It is not a de Polignac number, because 136747277 - 2²⁰ = 135698701 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 (136747271) 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, 68373638 + 68373639.

It is an arithmetic number, because the mean of its divisors is an integer number (68373639).

Almost surely, 2^136747277 is an apocalyptic number.

It is an amenable number.

136747277 is a deficient number, since it is larger than the sum of its proper divisors (1).

136747277 is an equidigital number, since it uses as much as digits as its factorization.

136747277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345744, while the sum is 44.

The square root of 136747277 is about 11693.8991358742. The cubic root of 136747277 is about 515.1964902032.

The spelling of 136747277 in words is "one hundred thirty-six million, seven hundred forty-seven thousand, two hundred seventy-seven".