420233143 has 8 divisors (see below), whose sum is σ = 458599680. Its totient is φ = 381893880.

The previous prime is 420233141. The next prime is 420233173. The reversal of 420233143 is 341332024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420233143 - 2¹ = 420233141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420233141) 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 in 7 ways as a sum of consecutive naturals, for example, 38578 + ... + 48256.

It is an arithmetic number, because the mean of its divisors is an integer number (57324960).

Almost surely, 2^420233143 is an apocalyptic number.

420233143 is a deficient number, since it is larger than the sum of its proper divisors (38366537).

420233143 is a wasteful number, since it uses less digits than its factorization.

420233143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13637.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 420233143 is about 20499.5888495355. The cubic root of 420233143 is about 749.0257827861.

Adding to 420233143 its reverse (341332024), we get a palindrome (761565167).

The spelling of 420233143 in words is "four hundred twenty million, two hundred thirty-three thousand, one hundred forty-three".