165144332 has 6 divisors (see below), whose sum is σ = 289002588. Its totient is φ = 82572164.

The previous prime is 165144319. The next prime is 165144349. The reversal of 165144332 is 233441561.

It is a junction number, because it is equal to n+sod(n) for n = 165144295 and 165144304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20643038 + ... + 20643045.

It is an arithmetic number, because the mean of its divisors is an integer number (48167098).

Almost surely, 2^165144332 is an apocalyptic number.

It is an amenable number.

165144332 is a deficient number, since it is larger than the sum of its proper divisors (123858256).

165144332 is a wasteful number, since it uses less digits than its factorization.

165144332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41286087 (or 41286085 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 165144332 is about 12850.8494660859. The cubic root of 165144332 is about 548.6405345134.

Adding to 165144332 its reverse (233441561), we get a palindrome (398585893).

The spelling of 165144332 in words is "one hundred sixty-five million, one hundred forty-four thousand, three hundred thirty-two".