165275136 has 240 divisors, whose sum is σ = 536215680. Its totient is φ = 48660480.

The previous prime is 165275119. The next prime is 165275177. The reversal of 165275136 is 631572561.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 165275136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1856980 + ... + 1857068.

It is an arithmetic number, because the mean of its divisors is an integer number (2234232).

Almost surely, 2^165275136 is an apocalyptic number.

165275136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165275136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268107840).

165275136 is an abundant number, since it is smaller than the sum of its proper divisors (370940544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165275136 is a wasteful number, since it uses less digits than its factorization.

165275136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 138 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 165275136 is about 12855.9377720958. The cubic root of 165275136 is about 548.7853481172.

The spelling of 165275136 in words is "one hundred sixty-five million, two hundred seventy-five thousand, one hundred thirty-six".