136505134 has 16 divisors (see below), whose sum is σ = 210051072. Its totient is φ = 66496248.

The previous prime is 136505123. The next prime is 136505137. The reversal of 136505134 is 431505631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136505137) 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 in 7 ways as a sum of consecutive naturals, for example, 36307 + ... + 39889.

It is an arithmetic number, because the mean of its divisors is an integer number (13128192).

Almost surely, 2^136505134 is an apocalyptic number.

136505134 is a deficient number, since it is larger than the sum of its proper divisors (73545938).

136505134 is a wasteful number, since it uses less digits than its factorization.

136505134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 136505134 is about 11683.5411583989. The cubic root of 136505134 is about 514.8922186235.

The spelling of 136505134 in words is "one hundred thirty-six million, five hundred five thousand, one hundred thirty-four".