142353660305 has 4 divisors (see below), whose sum is σ = 170824392372. Its totient is φ = 113882928240.

The previous prime is 142353660289. The next prime is 142353660331. The reversal of 142353660305 is 503066353241.

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 29801462161 + 112552198144 = 172631^2 + 335488^2 .

It is not a de Polignac number, because 142353660305 - 2⁴ = 142353660289 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, 14235366026 + ... + 14235366035.

It is an arithmetic number, because the mean of its divisors is an integer number (42706098093).

Almost surely, 2^142353660305 is an apocalyptic number.

It is an amenable number.

142353660305 is a deficient number, since it is larger than the sum of its proper divisors (28470732067).

142353660305 is an equidigital number, since it uses as much as digits as its factorization.

142353660305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28470732066.

The product of its (nonzero) digits is 194400, while the sum is 38.

It can be divided in two parts, 1423536 and 60305, that added together give a palindrome (1483841).

The spelling of 142353660305 in words is "one hundred forty-two billion, three hundred fifty-three million, six hundred sixty thousand, three hundred five".