142252830721 has 4 divisors (see below), whose sum is σ = 146841631744. Its totient is φ = 137664029700.

The previous prime is 142252830679. The next prime is 142252830749. The reversal of 142252830721 is 127038252241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142252830721 - 2¹³ = 142252822529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142252830761) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2294400465 + ... + 2294400526.

It is an arithmetic number, because the mean of its divisors is an integer number (36710407936).

Almost surely, 2^142252830721 is an apocalyptic number.

It is an amenable number.

142252830721 is a deficient number, since it is larger than the sum of its proper divisors (4588801023).

142252830721 is an equidigital number, since it uses as much as digits as its factorization.

142252830721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588801022.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 142252830721 in words is "one hundred forty-two billion, two hundred fifty-two million, eight hundred thirty thousand, seven hundred twenty-one".