1000000142 has 4 divisors (see below), whose sum is σ = 1500000216. Its totient is φ = 500000070.

The previous prime is 1000000123. The next prime is 1000000181. The reversal of 1000000142 is 2410000001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 250000034 + ... + 250000037.

It is an arithmetic number, because the mean of its divisors is an integer number (375000054).

Almost surely, 2^1000000142 is an apocalyptic number.

1000000142 is a deficient number, since it is larger than the sum of its proper divisors (500000074).

1000000142 is an equidigital number, since it uses as much as digits as its factorization.

1000000142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500000073.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1000000142 is about 31622.7788469009. The cubic root of 1000000142 is about 1000.0000473333. Note that the first 4 decimals are identical.

Adding to 1000000142 its reverse (2410000001), we get a palindrome (3410000143).

The spelling of 1000000142 in words is "one billion, one hundred forty-two", and thus it is an aban number.