163929155 has 16 divisors (see below), whose sum is σ = 213114720. Its totient is φ = 121047264.

The previous prime is 163929149. The next prime is 163929167. The reversal of 163929155 is 551929361.

It is a happy number.

It is not a de Polignac number, because 163929155 - 2¹⁰ = 163928131 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3524 + ... + 18446.

It is an arithmetic number, because the mean of its divisors is an integer number (13319670).

Almost surely, 2^163929155 is an apocalyptic number.

163929155 is a deficient number, since it is larger than the sum of its proper divisors (49185565).

163929155 is an equidigital number, since it uses as much as digits as its factorization.

163929155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14967 (or 14941 counting only the distinct ones).

The product of its digits is 72900, while the sum is 41.

The square root of 163929155 is about 12803.4821435420. The cubic root of 163929155 is about 547.2915381325.

The spelling of 163929155 in words is "one hundred sixty-three million, nine hundred twenty-nine thousand, one hundred fifty-five".