142695305 has 4 divisors (see below), whose sum is σ = 171234372. Its totient is φ = 114156240.

The previous prime is 142695299. The next prime is 142695313. The reversal of 142695305 is 503596241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503596241 = 109 ⋅4620149.

It can be written as a sum of positive squares in 2 ways, for example, as 72454144 + 70241161 = 8512^2 + 8381^2 .

It is not a de Polignac number, because 142695305 - 2¹⁰ = 142694281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 14269526 + ... + 14269535.

It is an arithmetic number, because the mean of its divisors is an integer number (42808593).

Almost surely, 2^142695305 is an apocalyptic number.

It is an amenable number.

142695305 is a deficient number, since it is larger than the sum of its proper divisors (28539067).

142695305 is an equidigital number, since it uses as much as digits as its factorization.

142695305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28539066.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 142695305 is about 11945.5140115442. The cubic root of 142695305 is about 522.5604792519.

The spelling of 142695305 in words is "one hundred forty-two million, six hundred ninety-five thousand, three hundred five".