136605858 has 16 divisors (see below), whose sum is σ = 287591520. Its totient is φ = 43138656.

The previous prime is 136605853. The next prime is 136605869. The reversal of 136605858 is 858506631.

It is a super-2 number, since 2×136605858² = 37322320879832328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136605853) 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, 599035 + ... + 599262.

It is an arithmetic number, because the mean of its divisors is an integer number (17974470).

Almost surely, 2^136605858 is an apocalyptic number.

136605858 is an abundant number, since it is smaller than the sum of its proper divisors (150985662).

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

136605858 is a wasteful number, since it uses less digits than its factorization.

136605858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198321.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 136605858 is about 11687.8508717386. The cubic root of 136605858 is about 515.0188298642.

The spelling of 136605858 in words is "one hundred thirty-six million, six hundred five thousand, eight hundred fifty-eight".