142822417 has 2 divisors, whose sum is σ = 142822418. Its totient is φ = 142822416.

The previous prime is 142822369. The next prime is 142822469. The reversal of 142822417 is 714228241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80712256 + 62110161 = 8984^2 + 7881^2 .

It is a cyclic number.

It is not a de Polignac number, because 142822417 - 2²⁷ = 8604689 is a prime.

It is not a weakly prime, because it can be changed into another prime (142822217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71411208 + 71411209.

It is an arithmetic number, because the mean of its divisors is an integer number (71411209).

Almost surely, 2^142822417 is an apocalyptic number.

It is an amenable number.

142822417 is a deficient number, since it is larger than the sum of its proper divisors (1).

142822417 is an equidigital number, since it uses as much as digits as its factorization.

142822417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 31.

The square root of 142822417 is about 11950.8333182251. The cubic root of 142822417 is about 522.7155976330.

It can be divided in two parts, 1428224 and 17, that added together give a palindrome (1428241).

The spelling of 142822417 in words is "one hundred forty-two million, eight hundred twenty-two thousand, four hundred seventeen".