665134093 has 8 divisors (see below), whose sum is σ = 716499000. Its totient is φ = 613797888.

The previous prime is 665134091. The next prime is 665134097. The reversal of 665134093 is 390431566.

It can be written as a sum of positive squares in 4 ways, for example, as 5774409 + 659359684 = 2403^2 + 25678^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 665134093 - 2¹ = 665134091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665134091) by changing a digit.

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, 83133 + ... + 90781.

It is an arithmetic number, because the mean of its divisors is an integer number (89562375).

Almost surely, 2^665134093 is an apocalyptic number.

It is an amenable number.

665134093 is a deficient number, since it is larger than the sum of its proper divisors (51364907).

665134093 is a wasteful number, since it uses less digits than its factorization.

665134093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14351.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 665134093 is about 25790.1937371552. The cubic root of 665134093 is about 872.9105379097.

The spelling of 665134093 in words is "six hundred sixty-five million, one hundred thirty-four thousand, ninety-three".