134305665 has 16 divisors (see below), whose sum is σ = 231419328. Its totient is φ = 66119616.

The previous prime is 134305637. The next prime is 134305673. The reversal of 134305665 is 566503431.

It is not a de Polignac number, because 134305665 - 2⁶ = 134305601 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, 344179 + ... + 344568.

It is an arithmetic number, because the mean of its divisors is an integer number (14463708).

Almost surely, 2^134305665 is an apocalyptic number.

134305665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134305665 is a deficient number, since it is larger than the sum of its proper divisors (97113663).

134305665 is a wasteful number, since it uses less digits than its factorization.

134305665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688768.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 134305665 is about 11589.0320993602. The cubic root of 134305665 is about 512.1117932664. Note that the first 3 decimals are identical.

The spelling of 134305665 in words is "one hundred thirty-four million, three hundred five thousand, six hundred sixty-five".