423006143 has 16 divisors (see below), whose sum is σ = 502225920. Its totient is φ = 348734400.

The previous prime is 423006119. The next prime is 423006149. The reversal of 423006143 is 341600324.

423006143 = T₄₅₂₂ + T₄₅₂₃ + ... + T₄₅₆₂.

It is a happy number.

It is not a de Polignac number, because 423006143 - 2⁸ = 423005887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423006149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9998 + ... + 30756.

It is an arithmetic number, because the mean of its divisors is an integer number (31389120).

Almost surely, 2^423006143 is an apocalyptic number.

423006143 is a deficient number, since it is larger than the sum of its proper divisors (79219777).

423006143 is a wasteful number, since it uses less digits than its factorization.

423006143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20878.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 423006143 is about 20567.1131421014. The cubic root of 423006143 is about 750.6697087718.

Adding to 423006143 its reverse (341600324), we get a palindrome (764606467).

The spelling of 423006143 in words is "four hundred twenty-three million, six thousand, one hundred forty-three".