136622005 has 16 divisors (see below), whose sum is σ = 179457264. Its totient is φ = 99233280.

The previous prime is 136621999. The next prime is 136622009. The reversal of 136622005 is 500226631.

136622005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 31292836 + 105329169 = 5594^2 + 10263^2 .

It is not a de Polignac number, because 136622005 - 2⁵ = 136621973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136622009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13264 + ... + 21193.

It is an arithmetic number, because the mean of its divisors is an integer number (11216079).

Almost surely, 2^136622005 is an apocalyptic number.

It is an amenable number.

136622005 is a deficient number, since it is larger than the sum of its proper divisors (42835259).

136622005 is a wasteful number, since it uses less digits than its factorization.

136622005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34536.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 136622005 is about 11688.5416113389. The cubic root of 136622005 is about 515.0391210424.

Adding to 136622005 its reverse (500226631), we get a palindrome (636848636).

The spelling of 136622005 in words is "one hundred thirty-six million, six hundred twenty-two thousand, five".