423056159 has 2 divisors, whose sum is σ = 423056160. Its totient is φ = 423056158.

The previous prime is 423056149. The next prime is 423056171. The reversal of 423056159 is 951650324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423056159 - 2⁴ = 423056143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423056119) 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 as a sum of consecutive naturals, namely, 211528079 + 211528080.

It is an arithmetic number, because the mean of its divisors is an integer number (211528080).

Almost surely, 2^423056159 is an apocalyptic number.

423056159 is a deficient number, since it is larger than the sum of its proper divisors (1).

423056159 is an equidigital number, since it uses as much as digits as its factorization.

423056159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 423056159 is about 20568.3290279011. The cubic root of 423056159 is about 750.6992938556.

The spelling of 423056159 in words is "four hundred twenty-three million, fifty-six thousand, one hundred fifty-nine".