143542421406 has 32 divisors (see below), whose sum is σ = 319803213600. Its totient is φ = 47724465600.

The previous prime is 143542421381. The next prime is 143542421447. The reversal of 143542421406 is 604124245341.

143542421406 is a `hidden beast` number, since 1 + 4 + 3 + 5 + 4 + 242 + 1 + 406 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3395695 + ... + 3437706.

It is an arithmetic number, because the mean of its divisors is an integer number (9993850425).

Almost surely, 2^143542421406 is an apocalyptic number.

143542421406 is an abundant number, since it is smaller than the sum of its proper divisors (176260792194).

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

143542421406 is a wasteful number, since it uses less digits than its factorization.

143542421406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6833801 (or 6833795 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 143542421406 its reverse (604124245341), we get a palindrome (747666666747).

The spelling of 143542421406 in words is "one hundred forty-three billion, five hundred forty-two million, four hundred twenty-one thousand, four hundred six".