142542516309 has 16 divisors (see below), whose sum is σ = 190675107840. Its totient is φ = 94719409200.

The previous prime is 142542516293. The next prime is 142542516329. The reversal of 142542516309 is 903615245241.

It is not a de Polignac number, because 142542516309 - 2⁴ = 142542516293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142542516329) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2114872 + ... + 2181230.

It is an arithmetic number, because the mean of its divisors is an integer number (11917194240).

Almost surely, 2^142542516309 is an apocalyptic number.

It is an amenable number.

142542516309 is a deficient number, since it is larger than the sum of its proper divisors (48132591531).

142542516309 is a wasteful number, since it uses less digits than its factorization.

142542516309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68680.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 142542516309 in words is "one hundred forty-two billion, five hundred forty-two million, five hundred sixteen thousand, three hundred nine".