142422345 has 48 divisors (see below), whose sum is σ = 281513232. Its totient is φ = 65986560.

The previous prime is 142422341. The next prime is 142422359. The reversal of 142422345 is 543224241.

142422345 is a `hidden beast` number, since 1 + 424 + 2 + 234 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 27846729 + 114575616 = 5277^2 + 10704^2 .

It is not a de Polignac number, because 142422345 - 2² = 142422341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142422341) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2785 + ... + 17105.

It is an arithmetic number, because the mean of its divisors is an integer number (5864859).

Almost surely, 2^142422345 is an apocalyptic number.

142422345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142422345 is a deficient number, since it is larger than the sum of its proper divisors (139090887).

142422345 is a wasteful number, since it uses less digits than its factorization.

142422345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14362 (or 14359 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 142422345 is about 11934.0833330424. The cubic root of 142422345 is about 522.2270668447.

Adding to 142422345 its reverse (543224241), we get a palindrome (685646586).

The spelling of 142422345 in words is "one hundred forty-two million, four hundred twenty-two thousand, three hundred forty-five".