142322445169 has 2 divisors, whose sum is σ = 142322445170. Its totient is φ = 142322445168.

The previous prime is 142322445113. The next prime is 142322445203. The reversal of 142322445169 is 961544223241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137563101025 + 4759344144 = 370895^2 + 68988^2 .

It is a cyclic number.

It is not a de Polignac number, because 142322445169 - 2¹¹ = 142322443121 is a prime.

It is a super-2 number, since 2×142322445169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142322445569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161222584 + 71161222585.

It is an arithmetic number, because the mean of its divisors is an integer number (71161222585).

Almost surely, 2^142322445169 is an apocalyptic number.

It is an amenable number.

142322445169 is a deficient number, since it is larger than the sum of its proper divisors (1).

142322445169 is an equidigital number, since it uses as much as digits as its factorization.

142322445169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 43.

The spelling of 142322445169 in words is "one hundred forty-two billion, three hundred twenty-two million, four hundred forty-five thousand, one hundred sixty-nine".