136404067 has 2 divisors, whose sum is σ = 136404068. Its totient is φ = 136404066.

The previous prime is 136404049. The next prime is 136404131. The reversal of 136404067 is 760404631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136404067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136404167) 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, 68202033 + 68202034.

It is an arithmetic number, because the mean of its divisors is an integer number (68202034).

Almost surely, 2^136404067 is an apocalyptic number.

136404067 is a deficient number, since it is larger than the sum of its proper divisors (1).

136404067 is an equidigital number, since it uses as much as digits as its factorization.

136404067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 136404067 is about 11679.2151705498. The cubic root of 136404067 is about 514.7651136115.

Adding to 136404067 its reverse (760404631), we get a palindrome (896808698).

The spelling of 136404067 in words is "one hundred thirty-six million, four hundred four thousand, sixty-seven".