423004139 has 2 divisors, whose sum is σ = 423004140. Its totient is φ = 423004138.

The previous prime is 423004129. The next prime is 423004147. The reversal of 423004139 is 931400324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423004139 - 2⁸ = 423003883 is a prime.

It is a super-2 number, since 2×423004139² = 357865003222262642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423004129) 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, 211502069 + 211502070.

It is an arithmetic number, because the mean of its divisors is an integer number (211502070).

Almost surely, 2^423004139 is an apocalyptic number.

423004139 is a deficient number, since it is larger than the sum of its proper divisors (1).

423004139 is an equidigital number, since it uses as much as digits as its factorization.

423004139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 423004139 is about 20567.0644234903. The cubic root of 423004139 is about 750.6685233324.

The spelling of 423004139 in words is "four hundred twenty-three million, four thousand, one hundred thirty-nine".