142222705 has 16 divisors (see below), whose sum is σ = 174746880. Its totient is φ = 111071232.

The previous prime is 142222693. The next prime is 142222723. The reversal of 142222705 is 507222241.

It is a cyclic number.

It is not a de Polignac number, because 142222705 - 2⁹ = 142222193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142222705.

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 15 ways as a sum of consecutive naturals, for example, 180322 + ... + 181108.

It is an arithmetic number, because the mean of its divisors is an integer number (10921680).

Almost surely, 2^142222705 is an apocalyptic number.

It is an amenable number.

142222705 is a deficient number, since it is larger than the sum of its proper divisors (32524175).

142222705 is an equidigital number, since it uses as much as digits as its factorization.

142222705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 142222705 is about 11925.7161210554. The cubic root of 142222705 is about 521.9829427836.

Adding to 142222705 its reverse (507222241), we get a palindrome (649444946).

The spelling of 142222705 in words is "one hundred forty-two million, two hundred twenty-two thousand, seven hundred five".