136568434 has 32 divisors (see below), whose sum is σ = 218566656. Its totient is φ = 63866880.

The previous prime is 136568413. The next prime is 136568437. The reversal of 136568434 is 434865631.

136568434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (136568437) 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, 566554 + ... + 566794.

It is an arithmetic number, because the mean of its divisors is an integer number (6830208).

Almost surely, 2^136568434 is an apocalyptic number.

136568434 is a deficient number, since it is larger than the sum of its proper divisors (81998222).

136568434 is a wasteful number, since it uses less digits than its factorization.

136568434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490.

The product of its digits is 207360, while the sum is 40.

The square root of 136568434 is about 11686.2497833993. The cubic root of 136568434 is about 514.9717947289.

The spelling of 136568434 in words is "one hundred thirty-six million, five hundred sixty-eight thousand, four hundred thirty-four".