142445247265 has 4 divisors (see below), whose sum is σ = 170934296724. Its totient is φ = 113956197808.

The previous prime is 142445247199. The next prime is 142445247277. The reversal of 142445247265 is 562742544241.

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 35775074449 + 106670172816 = 189143^2 + 326604^2 .

It is a cyclic number.

It is not a de Polignac number, because 142445247265 - 2¹³ = 142445239073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14244524722 + ... + 14244524731.

It is an arithmetic number, because the mean of its divisors is an integer number (42733574181).

Almost surely, 2^142445247265 is an apocalyptic number.

It is an amenable number.

142445247265 is a deficient number, since it is larger than the sum of its proper divisors (28489049459).

142445247265 is an equidigital number, since it uses as much as digits as its factorization.

142445247265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28489049458.

The product of its digits is 2150400, while the sum is 46.

The spelling of 142445247265 in words is "one hundred forty-two billion, four hundred forty-five million, two hundred forty-seven thousand, two hundred sixty-five".