136867771 has 2 divisors, whose sum is σ = 136867772. Its totient is φ = 136867770.

The previous prime is 136867769. The next prime is 136867777. The reversal of 136867771 is 177768631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136867771 - 2¹ = 136867769 is a prime.

Together with 136867769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (136867777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68433885 + 68433886.

It is an arithmetic number, because the mean of its divisors is an integer number (68433886).

Almost surely, 2^136867771 is an apocalyptic number.

136867771 is a deficient number, since it is larger than the sum of its proper divisors (1).

136867771 is an equidigital number, since it uses as much as digits as its factorization.

136867771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 46.

The square root of 136867771 is about 11699.0500041670. The cubic root of 136867771 is about 515.3477664917.

The spelling of 136867771 in words is "one hundred thirty-six million, eight hundred sixty-seven thousand, seven hundred seventy-one".