143520345 has 36 divisors (see below), whose sum is σ = 260098020. Its totient is φ = 73204032.

The previous prime is 143520331. The next prime is 143520353. The reversal of 143520345 is 543025341.

143520345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 98724096 + 44796249 = 9936^2 + 6693^2 .

It is not a de Polignac number, because 143520345 - 2⁵ = 143520313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20791 + ... + 26819.

It is an arithmetic number, because the mean of its divisors is an integer number (7224945).

Almost surely, 2^143520345 is an apocalyptic number.

143520345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143520345 is a deficient number, since it is larger than the sum of its proper divisors (116577675).

143520345 is a wasteful number, since it uses less digits than its factorization.

143520345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 6060 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 143520345 is about 11979.9977045073. The cubic root of 143520345 is about 523.5656630907.

Adding to 143520345 its reverse (543025341), we get a palindrome (686545686).

The spelling of 143520345 in words is "one hundred forty-three million, five hundred twenty thousand, three hundred forty-five".