165115032 has 32 divisors (see below), whose sum is σ = 413479680. Its totient is φ = 54946080.

The previous prime is 165115031. The next prime is 165115037. The reversal of 165115032 is 230511561.

It is a super-2 number, since 2×165115032² = 54525947584722048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 165114993 and 165115011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165115031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9693 + ... + 20595.

It is an arithmetic number, because the mean of its divisors is an integer number (12921240).

Almost surely, 2^165115032 is an apocalyptic number.

165115032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165115032 is an abundant number, since it is smaller than the sum of its proper divisors (248364648).

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

165115032 is a wasteful number, since it uses less digits than its factorization.

165115032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543 (or 11539 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 165115032 is about 12849.7094130568. The cubic root of 165115032 is about 548.6080858905.

Adding to 165115032 its reverse (230511561), we get a palindrome (395626593).

The spelling of 165115032 in words is "one hundred sixty-five million, one hundred fifteen thousand, thirty-two".