163531146 has 16 divisors (see below), whose sum is σ = 329451264. Its totient is φ = 54112224.

The previous prime is 163531139. The next prime is 163531153. The reversal of 163531146 is 641135361.

It is an interprime number because it is at equal distance from previous prime (163531139) and next prime (163531153).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98650 + ... + 100293.

It is an arithmetic number, because the mean of its divisors is an integer number (20590704).

Almost surely, 2^163531146 is an apocalyptic number.

163531146 is an abundant number, since it is smaller than the sum of its proper divisors (165920118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163531146 is a wasteful number, since it uses less digits than its factorization.

163531146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199085.

The product of its digits is 6480, while the sum is 30.

The square root of 163531146 is about 12787.9296995253. The cubic root of 163531146 is about 546.8482501245.

The spelling of 163531146 in words is "one hundred sixty-three million, five hundred thirty-one thousand, one hundred forty-six".