142112447 has 2 divisors, whose sum is σ = 142112448. Its totient is φ = 142112446.

The previous prime is 142112417. The next prime is 142112461. The reversal of 142112447 is 744211241.

It is a strong prime.

It is an emirp because it is prime and its reverse (744211241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142112447 - 2¹⁶ = 142046911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142112417) 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, 71056223 + 71056224.

It is an arithmetic number, because the mean of its divisors is an integer number (71056224).

Almost surely, 2^142112447 is an apocalyptic number.

142112447 is a deficient number, since it is larger than the sum of its proper divisors (1).

142112447 is an equidigital number, since it uses as much as digits as its factorization.

142112447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 26.

The square root of 142112447 is about 11921.0925254357. The cubic root of 142112447 is about 521.8480190050.

Adding to 142112447 its reverse (744211241), we get a palindrome (886323688).

The spelling of 142112447 in words is "one hundred forty-two million, one hundred twelve thousand, four hundred forty-seven".