142407218 has 8 divisors (see below), whose sum is σ = 215241840. Its totient is φ = 70659940.

The previous prime is 142407203. The next prime is 142407257. The reversal of 142407218 is 812704241.

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, 271508 + ... + 272031.

It is an arithmetic number, because the mean of its divisors is an integer number (26905230).

Almost surely, 2^142407218 is an apocalyptic number.

142407218 is a deficient number, since it is larger than the sum of its proper divisors (72834622).

142407218 is a wasteful number, since it uses less digits than its factorization.

142407218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543672.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 142407218 is about 11933.4495431958. The cubic root of 142407218 is about 522.2085772167.

The spelling of 142407218 in words is "one hundred forty-two million, four hundred seven thousand, two hundred eighteen".