2318939143 has 8 divisors (see below), whose sum is σ = 2422389600. Its totient is φ = 2215707648.

The previous prime is 2318939137. The next prime is 2318939153. The reversal of 2318939143 is 3419398132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2318939143 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 2318939143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2318939123) 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, 32898 + ... + 75631.

It is an arithmetic number, because the mean of its divisors is an integer number (302798700).

Almost surely, 2^2318939143 is an apocalyptic number.

2318939143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2318939143 is a deficient number, since it is larger than the sum of its proper divisors (103450457).

2318939143 is a wasteful number, since it uses less digits than its factorization.

2318939143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109481.

The product of its digits is 139968, while the sum is 43.

The square root of 2318939143 is about 48155.3646336522. The cubic root of 2318939143 is about 1323.6193793913.

The spelling of 2318939143 in words is "two billion, three hundred eighteen million, nine hundred thirty-nine thousand, one hundred forty-three".