163141609 has 4 divisors (see below), whose sum is σ = 163372420. Its totient is φ = 162910800.

The previous prime is 163141607. The next prime is 163141651. The reversal of 163141609 is 906141361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906141361 = 17 ⋅53302433.

It can be written as a sum of positive squares in 2 ways, for example, as 27931225 + 135210384 = 5285^2 + 11628^2 .

It is a cyclic number.

It is not a de Polignac number, because 163141609 - 2¹ = 163141607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163141607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114342 + ... + 115759.

It is an arithmetic number, because the mean of its divisors is an integer number (40843105).

Almost surely, 2^163141609 is an apocalyptic number.

It is an amenable number.

163141609 is a deficient number, since it is larger than the sum of its proper divisors (230811).

163141609 is an equidigital number, since it uses as much as digits as its factorization.

163141609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230810.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 163141609 is about 12772.6899672700. The cubic root of 163141609 is about 546.4137009174.

The spelling of 163141609 in words is "one hundred sixty-three million, one hundred forty-one thousand, six hundred nine".