165141740 has 48 divisors (see below), whose sum is σ = 372423744. Its totient is φ = 61286400.

The previous prime is 165141737. The next prime is 165141761. The reversal of 165141740 is 47141561.

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, 20720 + ... + 27560.

It is an arithmetic number, because the mean of its divisors is an integer number (7758828).

Almost surely, 2^165141740 is an apocalyptic number.

165141740 is a gapful number since it is divisible by the number (10) 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 165141740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186211872).

165141740 is an abundant number, since it is smaller than the sum of its proper divisors (207282004).

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

165141740 is a wasteful number, since it uses less digits than its factorization.

165141740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938 (or 6936 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 165141740 is about 12850.7486163258. The cubic root of 165141740 is about 548.6376641279.

The spelling of 165141740 in words is "one hundred sixty-five million, one hundred forty-one thousand, seven hundred forty".