142306243451 has 4 divisors (see below), whose sum is σ = 142324221600. Its totient is φ = 142288265304.

The previous prime is 142306243439. The next prime is 142306243459. The reversal of 142306243451 is 154342603241.

142306243451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142306243451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142306243459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8977196 + ... + 8993033.

It is an arithmetic number, because the mean of its divisors is an integer number (35581055400).

Almost surely, 2^142306243451 is an apocalyptic number.

142306243451 is a deficient number, since it is larger than the sum of its proper divisors (17978149).

142306243451 is an equidigital number, since it uses as much as digits as its factorization.

142306243451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17978148.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 142306243451 its reverse (154342603241), we get a palindrome (296648846692).

The spelling of 142306243451 in words is "one hundred forty-two billion, three hundred six million, two hundred forty-three thousand, four hundred fifty-one".