142139996 has 6 divisors (see below), whose sum is σ = 248745000. Its totient is φ = 71069996.

The previous prime is 142139981. The next prime is 142140029. The reversal of 142139996 is 699931241.

It is a happy number.

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 as a sum of consecutive naturals, namely, 17767496 + ... + 17767503.

It is an arithmetic number, because the mean of its divisors is an integer number (41457500).

Almost surely, 2^142139996 is an apocalyptic number.

It is an amenable number.

142139996 is a deficient number, since it is larger than the sum of its proper divisors (106605004).

142139996 is a wasteful number, since it uses less digits than its factorization.

142139996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35535003 (or 35535001 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 142139996 is about 11922.2479423974. The cubic root of 142139996 is about 521.8817375204.

The spelling of 142139996 in words is "one hundred forty-two million, one hundred thirty-nine thousand, nine hundred ninety-six".