165453140 has 24 divisors (see below), whose sum is σ = 365739360. Its totient is φ = 62697888.

The previous prime is 165453139. The next prime is 165453151. The reversal of 165453140 is 41354561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217322 + ... + 218081.

It is an arithmetic number, because the mean of its divisors is an integer number (15239140).

Almost surely, 2^165453140 is an apocalyptic number.

165453140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165453140 is an abundant number, since it is smaller than the sum of its proper divisors (200286220).

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

165453140 is a wasteful number, since it uses less digits than its factorization.

165453140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435431 (or 435429 counting only the distinct ones).

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

The square root of 165453140 is about 12862.8589357110. The cubic root of 165453140 is about 548.9822943340.

The spelling of 165453140 in words is "one hundred sixty-five million, four hundred fifty-three thousand, one hundred forty".