165924127 has 4 divisors (see below), whose sum is σ = 166883400. Its totient is φ = 164964856.

The previous prime is 165924119. The next prime is 165924133. The reversal of 165924127 is 721429561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165924127 - 2³ = 165924119 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 (165924427) 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 3 ways as a sum of consecutive naturals, for example, 479377 + ... + 479722.

It is an arithmetic number, because the mean of its divisors is an integer number (41720850).

Almost surely, 2^165924127 is an apocalyptic number.

165924127 is a deficient number, since it is larger than the sum of its proper divisors (959273).

165924127 is an equidigital number, since it uses as much as digits as its factorization.

165924127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959272.

The product of its digits is 30240, while the sum is 37.

The square root of 165924127 is about 12881.1539467549. The cubic root of 165924127 is about 549.5027207714.

The spelling of 165924127 in words is "one hundred sixty-five million, nine hundred twenty-four thousand, one hundred twenty-seven".