165145232 has 40 divisors (see below), whose sum is σ = 367095552. Its totient is φ = 70502400.

The previous prime is 165145231. The next prime is 165145237. The reversal of 165145232 is 232541561.

It is a junction number, because it is equal to n+sod(n) for n = 165145195 and 165145204.

It is not an unprimeable number, because it can be changed into a prime (165145231) 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, 27632 + ... + 33072.

Almost surely, 2^165145232 is an apocalyptic number.

It is an amenable number.

165145232 is an abundant number, since it is smaller than the sum of its proper divisors (201950320).

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

165145232 is a wasteful number, since it uses less digits than its factorization.

165145232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5727 (or 5721 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 165145232 is about 12850.8844831786. The cubic root of 165145232 is about 548.6415311680.

Adding to 165145232 its reverse (232541561), we get a palindrome (397686793).

The spelling of 165145232 in words is "one hundred sixty-five million, one hundred forty-five thousand, two hundred thirty-two".