340537143 has 4 divisors (see below), whose sum is σ = 454049528. Its totient is φ = 227024760.

The previous prime is 340537121. The next prime is 340537151. The reversal of 340537143 is 341735043.

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

It is not a de Polignac number, because 340537143 - 2⁹ = 340536631 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 340537143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340537843) 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, 56756188 + ... + 56756193.

It is an arithmetic number, because the mean of its divisors is an integer number (113512382).

Almost surely, 2^340537143 is an apocalyptic number.

340537143 is a deficient number, since it is larger than the sum of its proper divisors (113512385).

340537143 is a wasteful number, since it uses less digits than its factorization.

340537143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113512384.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 340537143 is about 18453.6485010417. The cubic root of 340537143 is about 698.3205609895.

The spelling of 340537143 in words is "three hundred forty million, five hundred thirty-seven thousand, one hundred forty-three".