142245123375013 has 4 divisors (see below), whose sum is σ = 142248595095468. Its totient is φ = 142241651654560.

The previous prime is 142245123374987. The next prime is 142245123375031. The reversal of 142245123375013 is 310573321542241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 111706656924769 + 30538466450244 = 10569137^2 + 5526162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142245123375013 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 (142245123372013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735798768 + ... + 1735880713.

It is an arithmetic number, because the mean of its divisors is an integer number (35562148773867).

Almost surely, 2^{142245123375013} is an apocalyptic number.

It is an amenable number.

142245123375013 is a deficient number, since it is larger than the sum of its proper divisors (3471720455).

142245123375013 is an equidigital number, since it uses as much as digits as its factorization.

142245123375013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471720454.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 142245123375013 in words is "one hundred forty-two trillion, two hundred forty-five billion, one hundred twenty-three million, three hundred seventy-five thousand, thirteen".