142305545503 has 4 divisors (see below), whose sum is σ = 155242413288. Its totient is φ = 129368677720.

The previous prime is 142305545479. The next prime is 142305545561. The reversal of 142305545503 is 305545503241.

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

It is a cyclic number.

It is not a de Polignac number, because 142305545503 - 2²¹ = 142303448351 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 (142305545003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6468433876 + ... + 6468433897.

It is an arithmetic number, because the mean of its divisors is an integer number (38810603322).

Almost surely, 2^142305545503 is an apocalyptic number.

142305545503 is a deficient number, since it is larger than the sum of its proper divisors (12936867785).

142305545503 is a wasteful number, since it uses less digits than its factorization.

142305545503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936867784.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 142305545503 in words is "one hundred forty-two billion, three hundred five million, five hundred forty-five thousand, five hundred three".