142220614 has 4 divisors (see below), whose sum is σ = 213330924. Its totient is φ = 71110306.

The previous prime is 142220609. The next prime is 142220629. The reversal of 142220614 is 416022241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 416022241 = 317 ⋅1312373.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 35555152 + ... + 35555155.

It is an arithmetic number, because the mean of its divisors is an integer number (53332731).

Almost surely, 2^142220614 is an apocalyptic number.

142220614 is a deficient number, since it is larger than the sum of its proper divisors (71110310).

142220614 is an equidigital number, since it uses as much as digits as its factorization.

142220614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71110309.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 142220614 is about 11925.6284530418. The cubic root of 142220614 is about 521.9803846556.

Adding to 142220614 its reverse (416022241), we get a palindrome (558242855).

The spelling of 142220614 in words is "one hundred forty-two million, two hundred twenty thousand, six hundred fourteen".