142218140842 has 8 divisors (see below), whose sum is σ = 213331756932. Its totient is φ = 71107555200.

The previous prime is 142218140839. The next prime is 142218140843. The reversal of 142218140842 is 248041812241.

It can be written as a sum of positive squares in 2 ways, for example, as 131871385881 + 10346754961 = 363141^2 + 101719^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142218140843) 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, 636409 + ... + 830332.

Almost surely, 2^142218140842 is an apocalyptic number.

142218140842 is a deficient number, since it is larger than the sum of its proper divisors (71113616090).

142218140842 is a wasteful number, since it uses less digits than its factorization.

142218140842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515224.

The product of its (nonzero) digits is 32768, while the sum is 37.

The spelling of 142218140842 in words is "one hundred forty-two billion, two hundred eighteen million, one hundred forty thousand, eight hundred forty-two".