163426033 has 4 divisors (see below), whose sum is σ = 164404800. Its totient is φ = 162447268.

The previous prime is 163426019. The next prime is 163426057. The reversal of 163426033 is 330624361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 330624361 = 6389 ⋅51749.

It is a cyclic number.

It is not a de Polignac number, because 163426033 - 2⁵ = 163426001 is a prime.

It is a super-3 number, since 3×163426033³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163425992 and 163426010.

It is not an unprimeable number, because it can be changed into a prime (163426073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489133 + ... + 489466.

It is an arithmetic number, because the mean of its divisors is an integer number (41101200).

Almost surely, 2^163426033 is an apocalyptic number.

It is an amenable number.

163426033 is a deficient number, since it is larger than the sum of its proper divisors (978767).

163426033 is an equidigital number, since it uses as much as digits as its factorization.

163426033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978766.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 163426033 is about 12783.8191867689. The cubic root of 163426033 is about 546.7310590336.

The spelling of 163426033 in words is "one hundred sixty-three million, four hundred twenty-six thousand, thirty-three".