136768057 has 2 divisors, whose sum is σ = 136768058. Its totient is φ = 136768056.

The previous prime is 136768007. The next prime is 136768069. The reversal of 136768057 is 750867631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125350416 + 11417641 = 11196^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 136768057 - 2⁷ = 136767929 is a prime.

It is not a weakly prime, because it can be changed into another prime (136768007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68384028 + 68384029.

It is an arithmetic number, because the mean of its divisors is an integer number (68384029).

Almost surely, 2^136768057 is an apocalyptic number.

It is an amenable number.

136768057 is a deficient number, since it is larger than the sum of its proper divisors (1).

136768057 is an equidigital number, since it uses as much as digits as its factorization.

136768057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 136768057 is about 11694.7875996103. The cubic root of 136768057 is about 515.2225851551. Note that the first 3 decimals are identical.

The spelling of 136768057 in words is "one hundred thirty-six million, seven hundred sixty-eight thousand, fifty-seven".