136673777 has 2 divisors, whose sum is σ = 136673778. Its totient is φ = 136673776.

The previous prime is 136673759. The next prime is 136673807. The reversal of 136673777 is 777376631.

136673777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96020401 + 40653376 = 9799^2 + 6376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136673777 is a prime.

It is not a weakly prime, because it can be changed into another prime (136673077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68336888 + 68336889.

It is an arithmetic number, because the mean of its divisors is an integer number (68336889).

Almost surely, 2^136673777 is an apocalyptic number.

It is an amenable number.

136673777 is a deficient number, since it is larger than the sum of its proper divisors (1).

136673777 is an equidigital number, since it uses as much as digits as its factorization.

136673777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777924, while the sum is 47.

The square root of 136673777 is about 11690.7560491185. The cubic root of 136673777 is about 515.1041697095.

The spelling of 136673777 in words is "one hundred thirty-six million, six hundred seventy-three thousand, seven hundred seventy-seven".