136906865 has 16 divisors (see below), whose sum is σ = 174545280. Its totient is φ = 102731520.

The previous prime is 136906859. The next prime is 136906871. The reversal of 136906865 is 568609631.

It is an interprime number because it is at equal distance from previous prime (136906859) and next prime (136906871).

It is not a de Polignac number, because 136906865 - 2⁴ = 136906849 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, 23846 + ... + 29024.

It is an arithmetic number, because the mean of its divisors is an integer number (10909080).

Almost surely, 2^136906865 is an apocalyptic number.

It is an amenable number.

136906865 is a deficient number, since it is larger than the sum of its proper divisors (37638415).

136906865 is a wasteful number, since it uses less digits than its factorization.

136906865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 136906865 is about 11700.7207042985. The cubic root of 136906865 is about 515.3968286571.

The spelling of 136906865 in words is "one hundred thirty-six million, nine hundred six thousand, eight hundred sixty-five".