313140143 has 8 divisors (see below), whose sum is σ = 317740608. Its totient is φ = 308548224.

The previous prime is 313140131. The next prime is 313140151. The reversal of 313140143 is 341041313.

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

It is not a de Polignac number, because 313140143 - 2⁴ = 313140127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313140043) 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, 126746 + ... + 129192.

It is an arithmetic number, because the mean of its divisors is an integer number (39717576).

Almost surely, 2^313140143 is an apocalyptic number.

313140143 is a deficient number, since it is larger than the sum of its proper divisors (4600465).

313140143 is a wasteful number, since it uses less digits than its factorization.

313140143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 313140143 is about 17695.7662450655. The cubic root of 313140143 is about 679.0674522307.

Adding to 313140143 its reverse (341041313), we get a palindrome (654181456).

The spelling of 313140143 in words is "three hundred thirteen million, one hundred forty thousand, one hundred forty-three".