142273640755 has 4 divisors (see below), whose sum is σ = 170728368912. Its totient is φ = 113818912600.

The previous prime is 142273640753. The next prime is 142273640767. The reversal of 142273640755 is 557046372241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557046372241 = 3203 ⋅173913947.

It is not a de Polignac number, because 142273640755 - 2¹ = 142273640753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142273640753) 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, 14227364071 + ... + 14227364080.

It is an arithmetic number, because the mean of its divisors is an integer number (42682092228).

Almost surely, 2^142273640755 is an apocalyptic number.

142273640755 is a deficient number, since it is larger than the sum of its proper divisors (28454728157).

142273640755 is an equidigital number, since it uses as much as digits as its factorization.

142273640755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28454728156.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 142273640755 in words is "one hundred forty-two billion, two hundred seventy-three million, six hundred forty thousand, seven hundred fifty-five".