136236865 has 8 divisors (see below), whose sum is σ = 163582848. Its totient is φ = 108923760.

The previous prime is 136236833. The next prime is 136236887. The reversal of 136236865 is 568632631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136236865 - 2⁵ = 136236833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2074 + ... + 16636.

It is an arithmetic number, because the mean of its divisors is an integer number (20447856).

Almost surely, 2^136236865 is an apocalyptic number.

It is an amenable number.

136236865 is a deficient number, since it is larger than the sum of its proper divisors (27345983).

136236865 is a wasteful number, since it uses less digits than its factorization.

136236865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16439.

The product of its digits is 155520, while the sum is 40.

The square root of 136236865 is about 11672.0548747853. The cubic root of 136236865 is about 514.5546972360.

The spelling of 136236865 in words is "one hundred thirty-six million, two hundred thirty-six thousand, eight hundred sixty-five".