165501127 has 8 divisors (see below), whose sum is σ = 180835200. Its totient is φ = 150215160.

The previous prime is 165501101. The next prime is 165501143. The reversal of 165501127 is 721105561.

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 165501127 - 2¹⁹ = 164976839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165501095 and 165501104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165501727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4627 + ... + 18772.

It is an arithmetic number, because the mean of its divisors is an integer number (22604400).

Almost surely, 2^165501127 is an apocalyptic number.

165501127 is a deficient number, since it is larger than the sum of its proper divisors (15334073).

165501127 is a wasteful number, since it uses less digits than its factorization.

165501127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24053.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 165501127 is about 12864.7241322929. The cubic root of 165501127 is about 549.0353636741.

Adding to 165501127 its reverse (721105561), we get a palindrome (886606688).

The spelling of 165501127 in words is "one hundred sixty-five million, five hundred one thousand, one hundred twenty-seven".