136866705 has 16 divisors (see below), whose sum is σ = 226051584. Its totient is φ = 70640640.

The previous prime is 136866673. The next prime is 136866713. The reversal of 136866705 is 507668631.

It is not a de Polignac number, because 136866705 - 2⁵ = 136866673 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146704 + ... + 147633.

It is an arithmetic number, because the mean of its divisors is an integer number (14128224).

Almost surely, 2^136866705 is an apocalyptic number.

136866705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136866705 is a deficient number, since it is larger than the sum of its proper divisors (89184879).

136866705 is a wasteful number, since it uses less digits than its factorization.

136866705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294376.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 136866705 is about 11699.0044448235. The cubic root of 136866705 is about 515.3464285528.

The spelling of 136866705 in words is "one hundred thirty-six million, eight hundred sixty-six thousand, seven hundred five".