165143484 has 72 divisors (see below), whose sum is σ = 460015920. Its totient is φ = 49536000.

The previous prime is 165143471. The next prime is 165143507. The reversal of 165143484 is 484341561.

165143484 is a `hidden beast` number, since 165 + 14 + 3 + 484 = 666.

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

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, 37932 + ... + 42060.

It is an arithmetic number, because the mean of its divisors is an integer number (6389110).

Almost surely, 2^165143484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165143484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230007960).

165143484 is an abundant number, since it is smaller than the sum of its proper divisors (294872436).

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

165143484 is a wasteful number, since it uses less digits than its factorization.

165143484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251 (or 4246 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 165143484 is about 12850.8164721157. The cubic root of 165143484 is about 548.6395954400.

The spelling of 165143484 in words is "one hundred sixty-five million, one hundred forty-three thousand, four hundred eighty-four".