163255475 has 24 divisors (see below), whose sum is σ = 206891520. Its totient is φ = 127764000.

The previous prime is 163255451. The next prime is 163255493. The reversal of 163255475 is 574552361.

It is a happy number.

It is not a de Polignac number, because 163255475 - 2²⁰ = 162206899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258410 + ... + 259040.

It is an arithmetic number, because the mean of its divisors is an integer number (8620480).

Almost surely, 2^163255475 is an apocalyptic number.

163255475 is a deficient number, since it is larger than the sum of its proper divisors (43636045).

163255475 is a wasteful number, since it uses less digits than its factorization.

163255475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 846 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 163255475 is about 12777.1465906907. The cubic root of 163255475 is about 546.5407959675.

The spelling of 163255475 in words is "one hundred sixty-three million, two hundred fifty-five thousand, four hundred seventy-five".