163270730 has 16 divisors (see below), whose sum is σ = 335871360. Its totient is φ = 55978512.

The previous prime is 163270727. The next prime is 163270739. The reversal of 163270730 is 37072361.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163270693 and 163270702.

It is not an unprimeable number, because it can be changed into a prime (163270739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166150 + ... + 1166289.

It is an arithmetic number, because the mean of its divisors is an integer number (20991960).

Almost surely, 2^163270730 is an apocalyptic number.

163270730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163270730 is an abundant number, since it is smaller than the sum of its proper divisors (172600630).

163270730 is a wasteful number, since it uses less digits than its factorization.

163270730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332453.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 163270730 is about 12777.7435410169. The cubic root of 163270730 is about 546.5578188170.

The spelling of 163270730 in words is "one hundred sixty-three million, two hundred seventy thousand, seven hundred thirty".