163158641 has 8 divisors (see below), whose sum is σ = 171466944. Its totient is φ = 155055600.

The previous prime is 163158623. The next prime is 163158683. The reversal of 163158641 is 146851361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163158641 - 2²⁶ = 96049777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163158691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49685 + ... + 52866.

It is an arithmetic number, because the mean of its divisors is an integer number (21433368).

Almost surely, 2^163158641 is an apocalyptic number.

It is an amenable number.

163158641 is a deficient number, since it is larger than the sum of its proper divisors (8308303).

163158641 is a wasteful number, since it uses less digits than its factorization.

163158641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102631.

The product of its digits is 17280, while the sum is 35.

The square root of 163158641 is about 12773.3566849125. The cubic root of 163158641 is about 546.4327154703.

Subtracting from 163158641 its product of digits (17280), we obtain a palindrome (163141361).

The spelling of 163158641 in words is "one hundred sixty-three million, one hundred fifty-eight thousand, six hundred forty-one".