143296313 has 4 divisors (see below), whose sum is σ = 143396388. Its totient is φ = 143196240.

The previous prime is 143296303. The next prime is 143296343. The reversal of 143296313 is 313692341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313692341 = 331 ⋅947711.

It can be written as a sum of positive squares in 2 ways, for example, as 142014889 + 1281424 = 11917^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 143296313 - 2⁴ = 143296297 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 143296313.

It is not an unprimeable number, because it can be changed into a prime (143296303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47858 + ... + 50763.

It is an arithmetic number, because the mean of its divisors is an integer number (35849097).

Almost surely, 2^143296313 is an apocalyptic number.

It is an amenable number.

143296313 is a deficient number, since it is larger than the sum of its proper divisors (100075).

143296313 is an equidigital number, since it uses as much as digits as its factorization.

143296313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100074.

The product of its digits is 11664, while the sum is 32.

The square root of 143296313 is about 11970.6438005648. The cubic root of 143296313 is about 523.2930965138.

The spelling of 143296313 in words is "one hundred forty-three million, two hundred ninety-six thousand, three hundred thirteen".