142220245 has 8 divisors (see below), whose sum is σ = 170753184. Its totient is φ = 113716944.

The previous prime is 142220231. The next prime is 142220311. The reversal of 142220245 is 542022241.

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 142220245 - 2¹⁷ = 142089173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5062 + ... + 17608.

It is an arithmetic number, because the mean of its divisors is an integer number (21344148).

Almost surely, 2^142220245 is an apocalyptic number.

It is an amenable number.

142220245 is a deficient number, since it is larger than the sum of its proper divisors (28532939).

142220245 is a wasteful number, since it uses less digits than its factorization.

142220245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14819.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 142220245 is about 11925.6129821490. The cubic root of 142220245 is about 521.9799332186.

Adding to 142220245 its reverse (542022241), we get a palindrome (684242486).

The spelling of 142220245 in words is "one hundred forty-two million, two hundred twenty thousand, two hundred forty-five".