142900218 has 24 divisors (see below), whose sum is σ = 309968256. Its totient is φ = 47579400.

The previous prime is 142900217. The next prime is 142900231. The reversal of 142900218 is 812009241.

It is a junction number, because it is equal to n+sod(n) for n = 142900191 and 142900200.

It is not an unprimeable number, because it can be changed into a prime (142900217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13833 + ... + 21843.

It is an arithmetic number, because the mean of its divisors is an integer number (12915344).

Almost surely, 2^142900218 is an apocalyptic number.

142900218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142900218 is an abundant number, since it is smaller than the sum of its proper divisors (167068038).

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

142900218 is a wasteful number, since it uses less digits than its factorization.

142900218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010 (or 9007 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 142900218 is about 11954.0879200381. The cubic root of 142900218 is about 522.8104950001.

Adding to 142900218 its reverse (812009241), we get a palindrome (954909459).

The spelling of 142900218 in words is "one hundred forty-two million, nine hundred thousand, two hundred eighteen".