163390274 has 16 divisors (see below), whose sum is σ = 254935296. Its totient is φ = 78452400.

The previous prime is 163390273. The next prime is 163390277. The reversal of 163390274 is 472093361.

163390274 is digitally balanced in base 3, because in such base 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 (163390273) 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, 1937 + ... + 18180.

It is an arithmetic number, because the mean of its divisors is an integer number (15933456).

Almost surely, 2^163390274 is an apocalyptic number.

163390274 is a deficient number, since it is larger than the sum of its proper divisors (91545022).

163390274 is a wasteful number, since it uses less digits than its factorization.

163390274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20281.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 163390274 is about 12782.4205063047. The cubic root of 163390274 is about 546.6911796629.

The spelling of 163390274 in words is "one hundred sixty-three million, three hundred ninety thousand, two hundred seventy-four".