142102218 has 16 divisors (see below), whose sum is σ = 300922560. Its totient is φ = 44581056.

The previous prime is 142102157. The next prime is 142102231. The reversal of 142102218 is 812201241.

It is a junction number, because it is equal to n+sod(n) for n = 142102194 and 142102203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696478 + ... + 696681.

It is an arithmetic number, because the mean of its divisors is an integer number (18807660).

Almost surely, 2^142102218 is an apocalyptic number.

142102218 is an abundant number, since it is smaller than the sum of its proper divisors (158820342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142102218 is a wasteful number, since it uses less digits than its factorization.

142102218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393181.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 142102218 is about 11920.6634882459. The cubic root of 142102218 is about 521.8354981420.

Adding to 142102218 its reverse (812201241), we get a palindrome (954303459).

The spelling of 142102218 in words is "one hundred forty-two million, one hundred two thousand, two hundred eighteen".