165043140 has 48 divisors (see below), whose sum is σ = 489307392. Its totient is φ = 41422336.

The previous prime is 165043133. The next prime is 165043169. The reversal of 165043140 is 41340561.

It is a super-3 number, since 3×165043140³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 165043140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79884 + ... + 81923.

It is an arithmetic number, because the mean of its divisors is an integer number (10193904).

Almost surely, 2^165043140 is an apocalyptic number.

165043140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165043140 is an abundant number, since it is smaller than the sum of its proper divisors (324264252).

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

165043140 is a wasteful number, since it uses less digits than its factorization.

165043140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161836 (or 161834 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 165043140 is about 12846.9116911420. The cubic root of 165043140 is about 548.5284519981.

The spelling of 165043140 in words is "one hundred sixty-five million, forty-three thousand, one hundred forty".