142112237 has 2 divisors, whose sum is σ = 142112238. Its totient is φ = 142112236.

The previous prime is 142112219. The next prime is 142112261. The reversal of 142112237 is 732211241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122522761 + 19589476 = 11069^2 + 4426^2 .

It is a cyclic number.

It is not a de Polignac number, because 142112237 - 2¹⁰ = 142111213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142112207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71056118 + 71056119.

It is an arithmetic number, because the mean of its divisors is an integer number (71056119).

Almost surely, 2^142112237 is an apocalyptic number.

It is an amenable number.

142112237 is a deficient number, since it is larger than the sum of its proper divisors (1).

142112237 is an equidigital number, since it uses as much as digits as its factorization.

142112237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 23.

The square root of 142112237 is about 11921.0837175149. The cubic root of 142112237 is about 521.8477619594.

Adding to 142112237 its reverse (732211241), we get a palindrome (874323478).

The spelling of 142112237 in words is "one hundred forty-two million, one hundred twelve thousand, two hundred thirty-seven".