142042207 has 2 divisors, whose sum is σ = 142042208. Its totient is φ = 142042206.

The previous prime is 142042193. The next prime is 142042247. The reversal of 142042207 is 702240241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142042207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142042247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71021103 + 71021104.

It is an arithmetic number, because the mean of its divisors is an integer number (71021104).

Almost surely, 2^142042207 is an apocalyptic number.

142042207 is a deficient number, since it is larger than the sum of its proper divisors (1).

142042207 is an equidigital number, since it uses as much as digits as its factorization.

142042207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 142042207 is about 11918.1461226149. The cubic root of 142042207 is about 521.7620292455.

Adding to 142042207 its reverse (702240241), we get a palindrome (844282448).

The spelling of 142042207 in words is "one hundred forty-two million, forty-two thousand, two hundred seven".