5231543142 has 64 divisors (see below), whose sum is σ = 12305018880. Its totient is φ = 1451719584.

The previous prime is 5231543129. The next prime is 5231543147. The reversal of 5231543142 is 2413451325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231543147) 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 31 ways as a sum of consecutive naturals, for example, 315183 + ... + 331365.

It is an arithmetic number, because the mean of its divisors is an integer number (192265920).

Almost surely, 2^5231543142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5231543142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6152509440).

5231543142 is an abundant number, since it is smaller than the sum of its proper divisors (7073475738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5231543142 is a wasteful number, since it uses less digits than its factorization.

5231543142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16417.

The product of its digits is 14400, while the sum is 30.

The square root of 5231543142 is about 72329.4071730164. The cubic root of 5231543142 is about 1735.9742157733.

Adding to 5231543142 its reverse (2413451325), we get a palindrome (7644994467).

The spelling of 5231543142 in words is "five billion, two hundred thirty-one million, five hundred forty-three thousand, one hundred forty-two".