163730 has 16 divisors (see below), whose sum is σ = 336960. Its totient is φ = 56112.

The previous prime is 163729. The next prime is 163733. The reversal of 163730 is 37361.

It is not an unprimeable number, because it can be changed into a prime (163733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (21060).

2¹⁶³⁷³⁰ is an apocalyptic number.

163730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163730 is an abundant number, since it is smaller than the sum of its proper divisors (173230).

It is a weird number, because it is abundant, but not a pseudoperfect number.

163730 is a wasteful number, since it uses less digits than its factorization.

163730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 163730 is about 404.6356385688. The cubic root of 163730 is about 54.7069816306.

The spelling of 163730 in words is "one hundred sixty-three thousand, seven hundred thirty".