136468578 has 16 divisors (see below), whose sum is σ = 273417120. Its totient is φ = 45409536.

The previous prime is 136468573. The next prime is 136468613. The reversal of 136468578 is 875864631.

It is not an unprimeable number, because it can be changed into a prime (136468573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16248 + ... + 23171.

It is an arithmetic number, because the mean of its divisors is an integer number (17088570).

Almost surely, 2^136468578 is an apocalyptic number.

136468578 is an abundant number, since it is smaller than the sum of its proper divisors (136948542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136468578 is a wasteful number, since it uses less digits than its factorization.

136468578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40001.

The product of its digits is 967680, while the sum is 48.

The square root of 136468578 is about 11681.9766306905. The cubic root of 136468578 is about 514.8462519021.

The spelling of 136468578 in words is "one hundred thirty-six million, four hundred sixty-eight thousand, five hundred seventy-eight".