143240313 has 8 divisors (see below), whose sum is σ = 191171008. Its totient is φ = 95401584.

The previous prime is 143240287. The next prime is 143240329. The reversal of 143240313 is 313042341.

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

It is not a de Polignac number, because 143240313 - 2⁵ = 143240281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143240313.

It is not an unprimeable number, because it can be changed into a prime (143240333) 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 7 ways as a sum of consecutive naturals, for example, 19270 + ... + 25647.

It is an arithmetic number, because the mean of its divisors is an integer number (23896376).

Almost surely, 2^143240313 is an apocalyptic number.

It is an amenable number.

143240313 is a deficient number, since it is larger than the sum of its proper divisors (47930695).

143240313 is a wasteful number, since it uses less digits than its factorization.

143240313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45983.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 143240313 is about 11968.3045165136. The cubic root of 143240313 is about 523.2249202270.

Adding to 143240313 its reverse (313042341), we get a palindrome (456282654).

The spelling of 143240313 in words is "one hundred forty-three million, two hundred forty thousand, three hundred thirteen".