142235143541 has 2 divisors, whose sum is σ = 142235143542. Its totient is φ = 142235143540.

The previous prime is 142235143537. The next prime is 142235143577. The reversal of 142235143541 is 145341532241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135684669316 + 6550474225 = 368354^2 + 80935^2 .

It is a cyclic number.

It is not a de Polignac number, because 142235143541 - 2² = 142235143537 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142235146541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71117571770 + 71117571771.

It is an arithmetic number, because the mean of its divisors is an integer number (71117571771).

Almost surely, 2^142235143541 is an apocalyptic number.

It is an amenable number.

142235143541 is a deficient number, since it is larger than the sum of its proper divisors (1).

142235143541 is an equidigital number, since it uses as much as digits as its factorization.

142235143541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

Adding to 142235143541 its reverse (145341532241), we get a palindrome (287576675782).

The spelling of 142235143541 in words is "one hundred forty-two billion, two hundred thirty-five million, one hundred forty-three thousand, five hundred forty-one".