165323132 has 48 divisors (see below), whose sum is σ = 322261632. Its totient is φ = 73725120.

The previous prime is 165323087. The next prime is 165323159. The reversal of 165323132 is 231323561.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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, 238907 + ... + 239597.

It is an arithmetic number, because the mean of its divisors is an integer number (6713784).

Almost surely, 2^165323132 is an apocalyptic number.

It is an amenable number.

165323132 is a deficient number, since it is larger than the sum of its proper divisors (156938500).

165323132 is a wasteful number, since it uses less digits than its factorization.

165323132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 856 counting only the distinct ones).

The product of its digits is 3240, while the sum is 26.

The square root of 165323132 is about 12857.8043226672. The cubic root of 165323132 is about 548.8384655087.

Adding to 165323132 its reverse (231323561), we get a palindrome (396646693).

The spelling of 165323132 in words is "one hundred sixty-five million, three hundred twenty-three thousand, one hundred thirty-two".