142122146 has 8 divisors (see below), whose sum is σ = 213234384. Its totient is φ = 71044020.

The previous prime is 142122107. The next prime is 142122161. The reversal of 142122146 is 641221241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9581 + ... + 19391.

It is an arithmetic number, because the mean of its divisors is an integer number (26654298).

Almost surely, 2^142122146 is an apocalyptic number.

142122146 is a deficient number, since it is larger than the sum of its proper divisors (71112238).

142122146 is an equidigital number, since it uses as much as digits as its factorization.

142122146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17056.

The product of its digits is 768, while the sum is 23.

The square root of 142122146 is about 11921.4993184582. The cubic root of 142122146 is about 521.8598905638.

Adding to 142122146 its reverse (641221241), we get a palindrome (783343387).

The spelling of 142122146 in words is "one hundred forty-two million, one hundred twenty-two thousand, one hundred forty-six".