2140343305 has 8 divisors (see below), whose sum is σ = 2570068800. Its totient is φ = 1711170096.

The previous prime is 2140343297. The next prime is 2140343311. The reversal of 2140343305 is 5033430412.

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

It is a cyclic number.

It is not a de Polignac number, because 2140343305 - 2³ = 2140343297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2140343305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129495 + ... + 145084.

It is an arithmetic number, because the mean of its divisors is an integer number (321258600).

Almost surely, 2^2140343305 is an apocalyptic number.

It is an amenable number.

2140343305 is a deficient number, since it is larger than the sum of its proper divisors (429725495).

2140343305 is a wasteful number, since it uses less digits than its factorization.

2140343305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276143.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2140343305 is about 46263.8444684399. The cubic root of 2140343305 is about 1288.7276489805.

Adding to 2140343305 its reverse (5033430412), we get a palindrome (7173773717).

The spelling of 2140343305 in words is "two billion, one hundred forty million, three hundred forty-three thousand, three hundred five".