142004909434 has 4 divisors (see below), whose sum is σ = 213007364154. Its totient is φ = 71002454716.

The previous prime is 142004909429. The next prime is 142004909441. The reversal of 142004909434 is 434909400241.

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

It can be written as a sum of positive squares in only one way, i.e., 134296596225 + 7708313209 = 366465^2 + 87797^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 35501227357 + ... + 35501227360.

Almost surely, 2^142004909434 is an apocalyptic number.

142004909434 is a deficient number, since it is larger than the sum of its proper divisors (71002454720).

142004909434 is an equidigital number, since it uses as much as digits as its factorization.

142004909434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71002454719.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 142004909434 in words is "one hundred forty-two billion, four million, nine hundred nine thousand, four hundred thirty-four".