142223105 has 16 divisors (see below), whose sum is σ = 186941520. Its totient is φ = 103391232.

The previous prime is 142223093. The next prime is 142223141. The reversal of 142223105 is 501322241.

It can be written as a sum of positive squares in 8 ways, for example, as 19722481 + 122500624 = 4441^2 + 11068^2 .

It is a cyclic number.

It is not a de Polignac number, because 142223105 - 2⁴ = 142223089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26384 + ... + 31313.

It is an arithmetic number, because the mean of its divisors is an integer number (11683845).

Almost surely, 2^142223105 is an apocalyptic number.

It is an amenable number.

142223105 is a deficient number, since it is larger than the sum of its proper divisors (44718415).

142223105 is a wasteful number, since it uses less digits than its factorization.

142223105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57748.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 142223105 is about 11925.7328915249. The cubic root of 142223105 is about 521.9834321405.

Adding to 142223105 its reverse (501322241), we get a palindrome (643545346).

The spelling of 142223105 in words is "one hundred forty-two million, two hundred twenty-three thousand, one hundred five".