142816445 has 16 divisors (see below), whose sum is σ = 186624000. Its totient is φ = 104505408.

The previous prime is 142816441. The next prime is 142816447. The reversal of 142816445 is 544618241.

It is a cyclic number.

It is not a de Polignac number, because 142816445 - 2² = 142816441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142816441) 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 15 ways as a sum of consecutive naturals, for example, 23165 + ... + 28674.

It is an arithmetic number, because the mean of its divisors is an integer number (11664000).

Almost surely, 2^142816445 is an apocalyptic number.

It is an amenable number.

142816445 is a deficient number, since it is larger than the sum of its proper divisors (43807555).

142816445 is a wasteful number, since it uses less digits than its factorization.

142816445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51892.

The product of its digits is 30720, while the sum is 35.

The square root of 142816445 is about 11950.5834585597. The cubic root of 142816445 is about 522.7083118929.

The spelling of 142816445 in words is "one hundred forty-two million, eight hundred sixteen thousand, four hundred forty-five".