163898255 has 16 divisors (see below), whose sum is σ = 199330848. Its totient is φ = 129360000.

The previous prime is 163898239. The next prime is 163898257. The reversal of 163898255 is 552898361.

It is not a de Polignac number, because 163898255 - 2⁴ = 163898239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163898257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247625 + ... + 248285.

It is an arithmetic number, because the mean of its divisors is an integer number (12458178).

Almost surely, 2^163898255 is an apocalyptic number.

163898255 is a deficient number, since it is larger than the sum of its proper divisors (35432593).

163898255 is a wasteful number, since it uses less digits than its factorization.

163898255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258.

The product of its digits is 518400, while the sum is 47.

The square root of 163898255 is about 12802.2753836964. The cubic root of 163898255 is about 547.2571485386.

The spelling of 163898255 in words is "one hundred sixty-three million, eight hundred ninety-eight thousand, two hundred fifty-five".