136557858 has 16 divisors (see below), whose sum is σ = 275821056. Its totient is φ = 45068400.

The previous prime is 136557853. The next prime is 136557871. The reversal of 136557858 is 858755631.

It is not an unprimeable number, because it can be changed into a prime (136557853) 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 in 7 ways as a sum of consecutive naturals, for example, 112066 + ... + 113277.

It is an arithmetic number, because the mean of its divisors is an integer number (17238816).

Almost surely, 2^136557858 is an apocalyptic number.

136557858 is an abundant number, since it is smaller than the sum of its proper divisors (139263198).

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

136557858 is a wasteful number, since it uses less digits than its factorization.

136557858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225449.

The product of its digits is 1008000, while the sum is 48.

The square root of 136557858 is about 11685.7972770368. The cubic root of 136557858 is about 514.9585010706.

The spelling of 136557858 in words is "one hundred thirty-six million, five hundred fifty-seven thousand, eight hundred fifty-eight".