134806665 has 16 divisors (see below), whose sum is σ = 246503808. Its totient is φ = 61625856.

The previous prime is 134806649. The next prime is 134806687. The reversal of 134806665 is 566608431.

It is not a de Polignac number, because 134806665 - 2⁴ = 134806649 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, 641832 + ... + 642041.

It is an arithmetic number, because the mean of its divisors is an integer number (15406488).

Almost surely, 2^134806665 is an apocalyptic number.

134806665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134806665 is a deficient number, since it is larger than the sum of its proper divisors (111697143).

134806665 is a wasteful number, since it uses less digits than its factorization.

134806665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283888.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 134806665 is about 11610.6272440381. The cubic root of 134806665 is about 512.7477794526.

The spelling of 134806665 in words is "one hundred thirty-four million, eight hundred six thousand, six hundred sixty-five".