423751143 has 4 divisors (see below), whose sum is σ = 565001528. Its totient is φ = 282500760.

The previous prime is 423751099. The next prime is 423751151. The reversal of 423751143 is 341157324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 423751143 - 2⁹ = 423750631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423751143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423751043) 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 3 ways as a sum of consecutive naturals, for example, 70625188 + ... + 70625193.

It is an arithmetic number, because the mean of its divisors is an integer number (141250382).

Almost surely, 2^423751143 is an apocalyptic number.

423751143 is a deficient number, since it is larger than the sum of its proper divisors (141250385).

423751143 is a wasteful number, since it uses less digits than its factorization.

423751143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141250384.

The product of its digits is 10080, while the sum is 30.

The square root of 423751143 is about 20585.2166128997. The cubic root of 423751143 is about 751.1101444062.

The spelling of 423751143 in words is "four hundred twenty-three million, seven hundred fifty-one thousand, one hundred forty-three".