423566159 has 2 divisors, whose sum is σ = 423566160. Its totient is φ = 423566158.

The previous prime is 423566153. The next prime is 423566167. The reversal of 423566159 is 951665324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423566159 - 2¹² = 423562063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423566153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211783079 + 211783080.

It is an arithmetic number, because the mean of its divisors is an integer number (211783080).

Almost surely, 2^423566159 is an apocalyptic number.

423566159 is a deficient number, since it is larger than the sum of its proper divisors (1).

423566159 is an equidigital number, since it uses as much as digits as its factorization.

423566159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The square root of 423566159 is about 20580.7229950748. The cubic root of 423566159 is about 751.0008321489. Note that the first 3 decimals are identical.

The spelling of 423566159 in words is "four hundred twenty-three million, five hundred sixty-six thousand, one hundred fifty-nine".