142130508005 has 4 divisors (see below), whose sum is σ = 170556609612. Its totient is φ = 113704406400.

The previous prime is 142130508001. The next prime is 142130508019. The reversal of 142130508005 is 500805031241.

It is a Cunningham number, because it is equal to 377002²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500805031241 = 19 ⋅26358159539.

It can be written as a sum of positive squares in 2 ways, for example, as 51167344804 + 90963163201 = 226202^2 + 301601^2 .

It is not a de Polignac number, because 142130508005 - 2² = 142130508001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142130508001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14213050796 + ... + 14213050805.

It is an arithmetic number, because the mean of its divisors is an integer number (42639152403).

Almost surely, 2^142130508005 is an apocalyptic number.

It is an amenable number.

142130508005 is a deficient number, since it is larger than the sum of its proper divisors (28426101607).

142130508005 is an equidigital number, since it uses as much as digits as its factorization.

142130508005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28426101606.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 142130508005 its reverse (500805031241), we get a palindrome (642935539246).

The spelling of 142130508005 in words is "one hundred forty-two billion, one hundred thirty million, five hundred eight thousand, five".