142354543405509 has 12 divisors (see below), whose sum is σ = 212256236762752. Its totient is φ = 91841640906600.

The previous prime is 142354543405493. The next prime is 142354543405513. The reversal of 142354543405509 is 905504345453241.

142354543405509 is a `hidden beast` number, since 1 + 4 + 2 + 3 + 5 + 4 + 5 + 43 + 40 + 550 + 9 = 666.

It is not a de Polignac number, because 142354543405509 - 2⁴ = 142354543405493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142354543405549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255115668907 + ... + 255115669464.

Almost surely, 2^{142354543405509} is an apocalyptic number.

It is an amenable number.

142354543405509 is a deficient number, since it is larger than the sum of its proper divisors (69901693357243).

142354543405509 is a wasteful number, since it uses less digits than its factorization.

142354543405509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510231338408 (or 510231338405 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 54.

The spelling of 142354543405509 in words is "one hundred forty-two trillion, three hundred fifty-four billion, five hundred forty-three million, four hundred five thousand, five hundred nine".