142445316 has 48 divisors (see below), whose sum is σ = 366686208. Its totient is φ = 42758400.

The previous prime is 142445287. The next prime is 142445323. The reversal of 142445316 is 613544241.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4740 + ... + 17531.

It is an arithmetic number, because the mean of its divisors is an integer number (7639296).

Almost surely, 2^142445316 is an apocalyptic number.

It is an amenable number.

142445316 is an abundant number, since it is smaller than the sum of its proper divisors (224240892).

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

142445316 is a wasteful number, since it uses less digits than its factorization.

142445316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22332 (or 22330 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 142445316 is about 11935.0457058195. The cubic root of 142445316 is about 522.2551416366.

Adding to 142445316 its reverse (613544241), we get a palindrome (755989557).

The spelling of 142445316 in words is "one hundred forty-two million, four hundred forty-five thousand, three hundred sixteen".