142244099 has 4 divisors (see below), whose sum is σ = 143030160. Its totient is φ = 141458040.

The previous prime is 142244071. The next prime is 142244107. The reversal of 142244099 is 990442241.

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 142244099 - 2¹⁶ = 142178563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142244059) 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, 392759 + ... + 393120.

It is an arithmetic number, because the mean of its divisors is an integer number (35757540).

Almost surely, 2^142244099 is an apocalyptic number.

142244099 is a deficient number, since it is larger than the sum of its proper divisors (786061).

142244099 is an equidigital number, since it uses as much as digits as its factorization.

142244099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786060.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 142244099 is about 11926.6130565220. The cubic root of 142244099 is about 522.0091147491.

The spelling of 142244099 in words is "one hundred forty-two million, two hundred forty-four thousand, ninety-nine".