142031987975 has 24 divisors (see below), whose sum is σ = 183825674880. Its totient is φ = 108656586720.

The previous prime is 142031987969. The next prime is 142031987987. The reversal of 142031987975 is 579789130241.

It is not a de Polignac number, because 142031987975 - 2⁴ = 142031987959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142031987975.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2284856 + ... + 2346194.

It is an arithmetic number, because the mean of its divisors is an integer number (7659403120).

Almost surely, 2^142031987975 is an apocalyptic number.

142031987975 is a deficient number, since it is larger than the sum of its proper divisors (41793686905).

142031987975 is a wasteful number, since it uses less digits than its factorization.

142031987975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65399 (or 65394 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 142031987975 in words is "one hundred forty-two billion, thirty-one million, nine hundred eighty-seven thousand, nine hundred seventy-five".