423155163 has 4 divisors (see below), whose sum is σ = 564206888. Its totient is φ = 282103440.

The previous prime is 423155141. The next prime is 423155167. The reversal of 423155163 is 361551324.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 423155163 - 2¹⁶ = 423089627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423155163.

It is not an unprimeable number, because it can be changed into a prime (423155167) 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, 70525858 + ... + 70525863.

It is an arithmetic number, because the mean of its divisors is an integer number (141051722).

Almost surely, 2^423155163 is an apocalyptic number.

423155163 is a deficient number, since it is larger than the sum of its proper divisors (141051725).

423155163 is a wasteful number, since it uses less digits than its factorization.

423155163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141051724.

The product of its digits is 10800, while the sum is 30.

The square root of 423155163 is about 20570.7355969591. The cubic root of 423155163 is about 750.7578490729.

The spelling of 423155163 in words is "four hundred twenty-three million, one hundred fifty-five thousand, one hundred sixty-three".