142231441613 has 6 divisors (see below), whose sum is σ = 151090147626. Its totient is φ = 133864885952.

The previous prime is 142231441603. The next prime is 142231441657. The reversal of 142231441613 is 316144132241.

It can be written as a sum of positive squares in 3 ways, for example, as 84982744324 + 57248697289 = 291518^2 + 239267^2 .

It is a de Polignac number, because none of the positive numbers 2^k-142231441613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142231441613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142231441603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246074870 + ... + 246075447.

It is an arithmetic number, because the mean of its divisors is an integer number (25181691271).

Almost surely, 2^142231441613 is an apocalyptic number.

It is an amenable number.

142231441613 is a deficient number, since it is larger than the sum of its proper divisors (8858706013).

142231441613 is an equidigital number, since it uses as much as digits as its factorization.

142231441613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492150351 (or 492150334 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

Adding to 142231441613 its reverse (316144132241), we get a palindrome (458375573854).

The spelling of 142231441613 in words is "one hundred forty-two billion, two hundred thirty-one million, four hundred forty-one thousand, six hundred thirteen".