143345645 has 8 divisors (see below), whose sum is σ = 172390680. Its totient is φ = 114425920.

The previous prime is 143345641. The next prime is 143345677. The reversal of 143345645 is 546543341.

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 143304841 = 202^2 + 11971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143345645 - 2² = 143345641 is a prime.

It is a super-3 number, since 3×143345645³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143345641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28790 + ... + 33399.

It is an arithmetic number, because the mean of its divisors is an integer number (21548835).

Almost surely, 2^143345645 is an apocalyptic number.

It is an amenable number.

143345645 is a deficient number, since it is larger than the sum of its proper divisors (29045035).

143345645 is an equidigital number, since it uses as much as digits as its factorization.

143345645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62655.

The product of its digits is 86400, while the sum is 35.

The square root of 143345645 is about 11972.7041640558. The cubic root of 143345645 is about 523.3531402387.

Adding to 143345645 its reverse (546543341), we get a palindrome (689888986).

The spelling of 143345645 in words is "one hundred forty-three million, three hundred forty-five thousand, six hundred forty-five".