142141323141197 has 4 divisors (see below), whose sum is σ = 142141442664540. Its totient is φ = 142141203617856.

The previous prime is 142141323141133. The next prime is 142141323141247. The reversal of 142141323141197 is 791141323141241.

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 17369273181316 + 124772049959881 = 4167646^2 + 11170141^2 .

It is a cyclic number.

It is not a de Polignac number, because 142141323141197 - 2⁶ = 142141323141133 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 (142141323141997) 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, 57959708 + ... + 60362325.

It is an arithmetic number, because the mean of its divisors is an integer number (35535360666135).

Almost surely, 2^{142141323141197} is an apocalyptic number.

It is an amenable number.

142141323141197 is a deficient number, since it is larger than the sum of its proper divisors (119523343).

142141323141197 is a wasteful number, since it uses less digits than its factorization.

142141323141197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119523342.

The product of its digits is 145152, while the sum is 44.

Adding to 142141323141197 its sum of digits (44), we get a palindrome (142141323141241).

The spelling of 142141323141197 in words is "one hundred forty-two trillion, one hundred forty-one billion, three hundred twenty-three million, one hundred forty-one thousand, one hundred ninety-seven".