165073240 has 32 divisors (see below), whose sum is σ = 371790000. Its totient is φ = 65962624.

The previous prime is 165073229. The next prime is 165073283. The reversal of 165073240 is 42370561.

165073240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 165073199 and 165073208.

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, 63486 + ... + 66034.

Almost surely, 2^165073240 is an apocalyptic number.

165073240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165073240 is an abundant number, since it is smaller than the sum of its proper divisors (206716760).

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

165073240 is a wasteful number, since it uses less digits than its factorization.

165073240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4175 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 165073240 is about 12848.0831255094. The cubic root of 165073240 is about 548.5617962150.

The spelling of 165073240 in words is "one hundred sixty-five million, seventy-three thousand, two hundred forty".