165730930 has 16 divisors (see below), whose sum is σ = 304663680. Its totient is φ = 64881712.

The previous prime is 165730921. The next prime is 165730933. The reversal of 165730930 is 39037561.

165730930 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (165730933) 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, 175840 + ... + 176779.

It is an arithmetic number, because the mean of its divisors is an integer number (19041480).

Almost surely, 2^165730930 is an apocalyptic number.

165730930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165730930 is a deficient number, since it is larger than the sum of its proper divisors (138932750).

165730930 is a wasteful number, since it uses less digits than its factorization.

165730930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352673.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 165730930 is about 12873.6525508497. The cubic root of 165730930 is about 549.2893631969.

The spelling of 165730930 in words is "one hundred sixty-five million, seven hundred thirty thousand, nine hundred thirty".