142238113 has 2 divisors, whose sum is σ = 142238114. Its totient is φ = 142238112.

The previous prime is 142238093. The next prime is 142238149. The reversal of 142238113 is 311832241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103897249 + 38340864 = 10193^2 + 6192^2 .

It is a cyclic number.

It is not a de Polignac number, because 142238113 - 2⁵ = 142238081 is a prime.

It is not a weakly prime, because it can be changed into another prime (142238413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71119056 + 71119057.

It is an arithmetic number, because the mean of its divisors is an integer number (71119057).

Almost surely, 2^142238113 is an apocalyptic number.

It is an amenable number.

142238113 is a deficient number, since it is larger than the sum of its proper divisors (1).

142238113 is an equidigital number, since it uses as much as digits as its factorization.

142238113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 142238113 is about 11926.3621025022. The cubic root of 142238113 is about 522.0017921480.

The spelling of 142238113 in words is "one hundred forty-two million, two hundred thirty-eight thousand, one hundred thirteen".