142818899 has 4 divisors (see below), whose sum is σ = 142850136. Its totient is φ = 142787664.

The previous prime is 142818883. The next prime is 142818919. The reversal of 142818899 is 998818241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142818899 - 2⁴ = 142818883 is a prime.

It is a super-3 number, since 3×142818899³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142818859) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7274 + ... + 18399.

It is an arithmetic number, because the mean of its divisors is an integer number (35712534).

Almost surely, 2^142818899 is an apocalyptic number.

142818899 is a deficient number, since it is larger than the sum of its proper divisors (31237).

142818899 is an equidigital number, since it uses as much as digits as its factorization.

142818899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31236.

The product of its digits is 331776, while the sum is 50.

The square root of 142818899 is about 11950.6861309299. The cubic root of 142818899 is about 522.7113057564.

The spelling of 142818899 in words is "one hundred forty-two million, eight hundred eighteen thousand, eight hundred ninety-nine".