163275489 has 48 divisors (see below), whose sum is σ = 263534544. Its totient is φ = 96768000.

The previous prime is 163275451. The next prime is 163275503. The reversal of 163275489 is 984572361.

163275489 is a `hidden beast` number, since 1 + 632 + 7 + 5 + 4 + 8 + 9 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 14630625 + 148644864 = 3825^2 + 12192^2 .

It is not a de Polignac number, because 163275489 - 2⁹ = 163274977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163270489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 484329 + ... + 484665.

It is an arithmetic number, because the mean of its divisors is an integer number (5490303).

Almost surely, 2^163275489 is an apocalyptic number.

It is an amenable number.

163275489 is a deficient number, since it is larger than the sum of its proper divisors (100259055).

163275489 is a wasteful number, since it uses less digits than its factorization.

163275489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 163275489 is about 12777.9297618981. The cubic root of 163275489 is about 546.5631291042.

The spelling of 163275489 in words is "one hundred sixty-three million, two hundred seventy-five thousand, four hundred eighty-nine".