143316640 has 24 divisors (see below), whose sum is σ = 338585940. Its totient is φ = 57326592.

The previous prime is 143316631. The next prime is 143316661. The reversal of 143316640 is 46613341.

It can be written as a sum of positive squares in 2 ways, for example, as 133356304 + 9960336 = 11548^2 + 3156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143316599 and 143316608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447705 + ... + 448024.

Almost surely, 2^143316640 is an apocalyptic number.

143316640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143316640 is an abundant number, since it is smaller than the sum of its proper divisors (195269300).

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

143316640 is an equidigital number, since it uses as much as digits as its factorization.

143316640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895744 (or 895736 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 143316640 is about 11971.4928058284. The cubic root of 143316640 is about 523.3178388947.

Adding to 143316640 its reverse (46613341), we get a palindrome (189929981).

The spelling of 143316640 in words is "one hundred forty-three million, three hundred sixteen thousand, six hundred forty".