423334139 has 2 divisors, whose sum is σ = 423334140. Its totient is φ = 423334138.

The previous prime is 423334129. The next prime is 423334147. The reversal of 423334139 is 931433324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423334139 - 2²⁴ = 406556923 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (423334129) 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, 211667069 + 211667070.

It is an arithmetic number, because the mean of its divisors is an integer number (211667070).

Almost surely, 2^423334139 is an apocalyptic number.

423334139 is a deficient number, since it is larger than the sum of its proper divisors (1).

423334139 is an equidigital number, since it uses as much as digits as its factorization.

423334139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 32.

The square root of 423334139 is about 20575.0853947195. The cubic root of 423334139 is about 750.8636799903.

The spelling of 423334139 in words is "four hundred twenty-three million, three hundred thirty-four thousand, one hundred thirty-nine".