136145865 has 16 divisors (see below), whose sum is σ = 225345600. Its totient is φ = 70107072.

The previous prime is 136145833. The next prime is 136145873. The reversal of 136145865 is 568541631.

136145865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136145865 - 2⁵ = 136145833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156055 + ... + 156924.

It is an arithmetic number, because the mean of its divisors is an integer number (14084100).

Almost surely, 2^136145865 is an apocalyptic number.

136145865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136145865 is a deficient number, since it is larger than the sum of its proper divisors (89199735).

136145865 is a wasteful number, since it uses less digits than its factorization.

136145865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313016.

The product of its digits is 86400, while the sum is 39.

The square root of 136145865 is about 11668.1560239825. The cubic root of 136145865 is about 514.4401053770.

The spelling of 136145865 in words is "one hundred thirty-six million, one hundred forty-five thousand, eight hundred sixty-five".