165502141 has 24 divisors (see below), whose sum is σ = 204141120. Its totient is φ = 131072256.

The previous prime is 165502133. The next prime is 165502187. The reversal of 165502141 is 141205561.

It is a happy number.

It is not a de Polignac number, because 165502141 - 2³ = 165502133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165502111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245581 + ... + 246253.

It is an arithmetic number, because the mean of its divisors is an integer number (8505880).

Almost surely, 2^165502141 is an apocalyptic number.

It is an amenable number.

165502141 is a deficient number, since it is larger than the sum of its proper divisors (38638979).

165502141 is an equidigital number, since it uses as much as digits as its factorization.

165502141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 165502141 is about 12864.7635423275. The cubic root of 165502141 is about 549.0364849570.

The spelling of 165502141 in words is "one hundred sixty-five million, five hundred two thousand, one hundred forty-one".