163494885 has 16 divisors (see below), whose sum is σ = 261753984. Its totient is φ = 87143232.

The previous prime is 163494871. The next prime is 163494889. The reversal of 163494885 is 588494361.

It is not a de Polignac number, because 163494885 - 2⁸ = 163494629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163494889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37899 + ... + 41991.

It is an arithmetic number, because the mean of its divisors is an integer number (16359624).

Almost surely, 2^163494885 is an apocalyptic number.

163494885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163494885 is a deficient number, since it is larger than the sum of its proper divisors (98259099).

163494885 is a wasteful number, since it uses less digits than its factorization.

163494885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764.

The product of its digits is 829440, while the sum is 48.

The square root of 163494885 is about 12786.5118386525. The cubic root of 163494885 is about 546.8078282014.

The spelling of 163494885 in words is "one hundred sixty-three million, four hundred ninety-four thousand, eight hundred eighty-five".