142322443 has 2 divisors, whose sum is σ = 142322444. Its totient is φ = 142322442.

The previous prime is 142322399. The next prime is 142322473. The reversal of 142322443 is 344223241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142322443 - 2¹³ = 142314251 is a prime.

It is not a weakly prime, because it can be changed into another prime (142322473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161221 + 71161222.

It is an arithmetic number, because the mean of its divisors is an integer number (71161222).

Almost surely, 2^142322443 is an apocalyptic number.

142322443 is a deficient number, since it is larger than the sum of its proper divisors (1).

142322443 is an equidigital number, since it uses as much as digits as its factorization.

142322443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 25.

The square root of 142322443 is about 11929.8970238640. The cubic root of 142322443 is about 522.1049330795.

Adding to 142322443 its reverse (344223241), we get a palindrome (486545684).

The spelling of 142322443 in words is "one hundred forty-two million, three hundred twenty-two thousand, four hundred forty-three".