136458538 has 16 divisors (see below), whose sum is σ = 207911880. Its totient is φ = 67161600.

The previous prime is 136458503. The next prime is 136458577. The reversal of 136458538 is 835854631.

It can be written as a sum of positive squares in 4 ways, for example, as 82391929 + 54066609 = 9077^2 + 7353^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136458494 and 136458503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41308 + ... + 44488.

Almost surely, 2^136458538 is an apocalyptic number.

136458538 is a deficient number, since it is larger than the sum of its proper divisors (71453342).

136458538 is a wasteful number, since it uses less digits than its factorization.

136458538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513.

The product of its digits is 345600, while the sum is 43.

The square root of 136458538 is about 11681.5469009888. The cubic root of 136458538 is about 514.8336258377.

The spelling of 136458538 in words is "one hundred thirty-six million, four hundred fifty-eight thousand, five hundred thirty-eight".