142005134353 has 4 divisors (see below), whose sum is σ = 142625244340. Its totient is φ = 141385024368.

The previous prime is 142005134267. The next prime is 142005134393. The reversal of 142005134353 is 353431500241.

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 119158207249 + 22846927104 = 345193^2 + 151152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142005134353 is a prime.

It is a super-2 number, since 2×142005134353² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142005134393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310054650 + ... + 310055107.

It is an arithmetic number, because the mean of its divisors is an integer number (35656311085).

Almost surely, 2^142005134353 is an apocalyptic number.

It is an amenable number.

142005134353 is a deficient number, since it is larger than the sum of its proper divisors (620109987).

142005134353 is an equidigital number, since it uses as much as digits as its factorization.

142005134353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620109986.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 142005134353 its reverse (353431500241), we get a palindrome (495436634594).

The spelling of 142005134353 in words is "one hundred forty-two billion, five million, one hundred thirty-four thousand, three hundred fifty-three".