142181023988 has 12 divisors (see below), whose sum is σ = 248820359172. Its totient is φ = 71089492800.

The previous prime is 142181023969. The next prime is 142181024003. The reversal of 142181023988 is 889320181241.

It can be written as a sum of positive squares in 2 ways, for example, as 69684384484 + 72496639504 = 263978^2 + 269252^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 120506 + ... + 546702.

It is an arithmetic number, because the mean of its divisors is an integer number (20735029931).

Almost surely, 2^142181023988 is an apocalyptic number.

It is an amenable number.

142181023988 is a deficient number, since it is larger than the sum of its proper divisors (106639335184).

142181023988 is a wasteful number, since it uses less digits than its factorization.

142181023988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509602 (or 509600 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 142181023988 in words is "one hundred forty-two billion, one hundred eighty-one million, twenty-three thousand, nine hundred eighty-eight".