165837127 has 6 divisors (see below), whose sum is σ = 168353808. Its totient is φ = 163357524.

The previous prime is 165837083. The next prime is 165837131. The reversal of 165837127 is 721738561.

It is not a de Polignac number, because 165837127 - 2⁷ = 165836999 is a prime.

It is a super-2 number, since 2×165837127² = 55003905383228258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165837127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165834127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13983 + ... + 22960.

It is an arithmetic number, because the mean of its divisors is an integer number (28058968).

Almost surely, 2^165837127 is an apocalyptic number.

165837127 is a deficient number, since it is larger than the sum of its proper divisors (2516681).

165837127 is an frugal number, since it uses more digits than its factorization.

165837127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37077 (or 37010 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 165837127 is about 12877.7764773271. The cubic root of 165837127 is about 549.4066626200.

The spelling of 165837127 in words is "one hundred sixty-five million, eight hundred thirty-seven thousand, one hundred twenty-seven".