165093081 has 8 divisors (see below), whose sum is σ = 220420224. Its totient is φ = 109914000.

The previous prime is 165093079. The next prime is 165093091. The reversal of 165093081 is 180390561.

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

It is not a de Polignac number, because 165093081 - 2¹ = 165093079 is a prime.

It is a super-2 number, since 2×165093081² = 54511450788145122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165093091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34386 + ... + 38891.

It is an arithmetic number, because the mean of its divisors is an integer number (27552528).

Almost surely, 2^165093081 is an apocalyptic number.

It is an amenable number.

165093081 is a deficient number, since it is larger than the sum of its proper divisors (55327143).

165093081 is an equidigital number, since it uses as much as digits as its factorization.

165093081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74031.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 165093081 is about 12848.8552408376. The cubic root of 165093081 is about 548.5837734871.

The spelling of 165093081 in words is "one hundred sixty-five million, ninety-three thousand, eighty-one".