143312445 has 24 divisors (see below), whose sum is σ = 248710176. Its totient is φ = 76340448.

The previous prime is 143312443. The next prime is 143312479. The reversal of 143312445 is 544213341.

It is a happy number.

It is not a de Polignac number, because 143312445 - 2¹ = 143312443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143312443) 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 23 ways as a sum of consecutive naturals, for example, 52074 + ... + 54756.

It is an arithmetic number, because the mean of its divisors is an integer number (10362924).

Almost surely, 2^143312445 is an apocalyptic number.

143312445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143312445 is a deficient number, since it is larger than the sum of its proper divisors (105397731).

143312445 is a wasteful number, since it uses less digits than its factorization.

143312445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881 (or 3878 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 143312445 is about 11971.3175966558. The cubic root of 143312445 is about 523.3127328587.

Adding to 143312445 its reverse (544213341), we get a palindrome (687525786).

The spelling of 143312445 in words is "one hundred forty-three million, three hundred twelve thousand, four hundred forty-five".