142747142 has 8 divisors (see below), whose sum is σ = 214171776. Its totient is φ = 71356552.

The previous prime is 142747141. The next prime is 142747151. The reversal of 142747142 is 241747241.

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

It is a junction number, because it is equal to n+sod(n) for n = 142747099 and 142747108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142747141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10208 + ... + 19740.

It is an arithmetic number, because the mean of its divisors is an integer number (26771472).

Almost surely, 2^142747142 is an apocalyptic number.

142747142 is a deficient number, since it is larger than the sum of its proper divisors (71424634).

142747142 is an equidigital number, since it uses as much as digits as its factorization.

142747142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17022.

The product of its digits is 12544, while the sum is 32.

The square root of 142747142 is about 11947.6835411723. The cubic root of 142747142 is about 522.6237485331.

Subtracting 142747142 from its reverse (241747241), we obtain a palindrome (99000099).

The spelling of 142747142 in words is "one hundred forty-two million, seven hundred forty-seven thousand, one hundred forty-two".