340131143 has 4 divisors (see below), whose sum is σ = 371052168. Its totient is φ = 309210120.

The previous prime is 340131139. The next prime is 340131229. The reversal of 340131143 is 341131043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340131143 - 2² = 340131139 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 (340131443) 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, 15460496 + ... + 15460517.

It is an arithmetic number, because the mean of its divisors is an integer number (92763042).

Almost surely, 2^340131143 is an apocalyptic number.

340131143 is a deficient number, since it is larger than the sum of its proper divisors (30921025).

340131143 is a wasteful number, since it uses less digits than its factorization.

340131143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30921024.

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

The square root of 340131143 is about 18442.6446856193. The cubic root of 340131143 is about 698.0429300941.

Adding to 340131143 its reverse (341131043), we get a palindrome (681262186).

The spelling of 340131143 in words is "three hundred forty million, one hundred thirty-one thousand, one hundred forty-three".