531243345142 has 8 divisors (see below), whose sum is σ = 798586109856. Its totient is φ = 265047975192.

The previous prime is 531243345137. The next prime is 531243345161. The reversal of 531243345142 is 241543342135.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286847533 + ... + 286849384.

It is an arithmetic number, because the mean of its divisors is an integer number (99823263732).

Almost surely, 2^531243345142 is an apocalyptic number.

531243345142 is a deficient number, since it is larger than the sum of its proper divisors (267342764714).

531243345142 is a wasteful number, since it uses less digits than its factorization.

531243345142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573697382.

The product of its digits is 172800, while the sum is 37.

Adding to 531243345142 its reverse (241543342135), we get a palindrome (772786687277).

The spelling of 531243345142 in words is "five hundred thirty-one billion, two hundred forty-three million, three hundred forty-five thousand, one hundred forty-two".