163057823 has 4 divisors (see below), whose sum is σ = 163789248. Its totient is φ = 162326400.

The previous prime is 163057813. The next prime is 163057859. The reversal of 163057823 is 328750361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328750361 = 53 ⋅6202837.

It is a cyclic number.

It is not a de Polignac number, because 163057823 - 2⁶ = 163057759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163057813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365378 + ... + 365823.

It is an arithmetic number, because the mean of its divisors is an integer number (40947312).

Almost surely, 2^163057823 is an apocalyptic number.

163057823 is a deficient number, since it is larger than the sum of its proper divisors (731425).

163057823 is an equidigital number, since it uses as much as digits as its factorization.

163057823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731424.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 163057823 is about 12769.4096574587. The cubic root of 163057823 is about 546.3201428149.

The spelling of 163057823 in words is "one hundred sixty-three million, fifty-seven thousand, eight hundred twenty-three".