142710005 has 4 divisors (see below), whose sum is σ = 171252012. Its totient is φ = 114168000.

The previous prime is 142709981. The next prime is 142710011. The reversal of 142710005 is 500017241.

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 22193521 + 120516484 = 4711^2 + 10978^2 .

It is not a de Polignac number, because 142710005 - 2¹² = 142705909 is a prime.

It is a super-2 number, since 2×142710005² = 40732291054200050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 14270996 + ... + 14271005.

It is an arithmetic number, because the mean of its divisors is an integer number (42813003).

Almost surely, 2^142710005 is an apocalyptic number.

It is an amenable number.

142710005 is a deficient number, since it is larger than the sum of its proper divisors (28542007).

142710005 is an equidigital number, since it uses as much as digits as its factorization.

142710005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28542006.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 142710005 is about 11946.1292894393. The cubic root of 142710005 is about 522.5784227885.

Adding to 142710005 its reverse (500017241), we get a palindrome (642727246).

The spelling of 142710005 in words is "one hundred forty-two million, seven hundred ten thousand, five".