142222305 has 8 divisors (see below), whose sum is σ = 227555712. Its totient is φ = 75851888.

The previous prime is 142222291. The next prime is 142222313. The reversal of 142222305 is 503222241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142222305 - 2¹⁷ = 142091233 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4740729 + ... + 4740758.

It is an arithmetic number, because the mean of its divisors is an integer number (28444464).

Almost surely, 2^142222305 is an apocalyptic number.

142222305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142222305 is a deficient number, since it is larger than the sum of its proper divisors (85333407).

142222305 is an equidigital number, since it uses as much as digits as its factorization.

142222305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481495.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142222305 is about 11925.6993505622. The cubic root of 142222305 is about 521.9824534258.

Adding to 142222305 its reverse (503222241), we get a palindrome (645444546).

The spelling of 142222305 in words is "one hundred forty-two million, two hundred twenty-two thousand, three hundred five".