163280075 has 48 divisors (see below), whose sum is σ = 240651264. Its totient is φ = 107568000.

The previous prime is 163280071. The next prime is 163280093. The reversal of 163280075 is 570082361.

It is a happy number.

It is not a de Polignac number, because 163280075 - 2² = 163280071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163280071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 977642 + ... + 977808.

It is an arithmetic number, because the mean of its divisors is an integer number (5013568).

Almost surely, 2^163280075 is an apocalyptic number.

163280075 is a deficient number, since it is larger than the sum of its proper divisors (77371189).

163280075 is a wasteful number, since it uses less digits than its factorization.

163280075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 163280075 is about 12778.1092106775. The cubic root of 163280075 is about 546.5682462532.

The spelling of 163280075 in words is "one hundred sixty-three million, two hundred eighty thousand, seventy-five".