142246105 has 8 divisors (see below), whose sum is σ = 170899200. Its totient is φ = 113660976.

The previous prime is 142246081. The next prime is 142246133. The reversal of 142246105 is 501642241.

It is a happy number.

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 142246105 - 2¹³ = 142237913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142246105.

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, 12265 + ... + 20854.

It is an arithmetic number, because the mean of its divisors is an integer number (21362400).

Almost surely, 2^142246105 is an apocalyptic number.

It is an amenable number.

142246105 is a deficient number, since it is larger than the sum of its proper divisors (28653095).

142246105 is an equidigital number, since it uses as much as digits as its factorization.

142246105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33983.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 142246105 is about 11926.6971538645. The cubic root of 142246105 is about 522.0115686186.

Adding to 142246105 its reverse (501642241), we get a palindrome (643888346).

The spelling of 142246105 in words is "one hundred forty-two million, two hundred forty-six thousand, one hundred five".