142424417 has 2 divisors, whose sum is σ = 142424418. Its totient is φ = 142424416.

The previous prime is 142424377. The next prime is 142424449. The reversal of 142424417 is 714424241.

142424417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118178641 + 24245776 = 10871^2 + 4924^2 .

It is an emirp because it is prime and its reverse (714424241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142424417 - 2⁶ = 142424353 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142424417.

It is not a weakly prime, because it can be changed into another prime (142424467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71212208 + 71212209.

It is an arithmetic number, because the mean of its divisors is an integer number (71212209).

Almost surely, 2^142424417 is an apocalyptic number.

It is an amenable number.

142424417 is a deficient number, since it is larger than the sum of its proper divisors (1).

142424417 is an equidigital number, since it uses as much as digits as its factorization.

142424417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 29.

The square root of 142424417 is about 11934.1701429132. The cubic root of 142424417 is about 522.2295993341.

Adding to 142424417 its reverse (714424241), we get a palindrome (856848658).

The spelling of 142424417 in words is "one hundred forty-two million, four hundred twenty-four thousand, four hundred seventeen".