143138057506 has 32 divisors (see below), whose sum is σ = 229927273920. Its totient is φ = 66631118400.

The previous prime is 143138057501. The next prime is 143138057507. The reversal of 143138057506 is 605750831341.

It is not an unprimeable number, because it can be changed into a prime (143138057501) 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 15 ways as a sum of consecutive naturals, for example, 1005096 + ... + 1138636.

It is an arithmetic number, because the mean of its divisors is an integer number (7185227310).

Almost surely, 2^143138057506 is an apocalyptic number.

143138057506 is a deficient number, since it is larger than the sum of its proper divisors (86789216414).

143138057506 is a wasteful number, since it uses less digits than its factorization.

143138057506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134050.

The product of its (nonzero) digits is 302400, while the sum is 43.

Adding to 143138057506 its reverse (605750831341), we get a palindrome (748888888847).

The spelling of 143138057506 in words is "one hundred forty-three billion, one hundred thirty-eight million, fifty-seven thousand, five hundred six".