8140345 has 8 divisors (see below), whose sum is σ = 10006920. Its totient is φ = 6353280.

The previous prime is 8140343. The next prime is 8140351. The reversal of 8140345 is 5430418.

8140345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 627264 + 7513081 = 792^2 + 2741^2 .

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

It is not a de Polignac number, because 8140345 - 2¹ = 8140343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8140343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19650 + ... + 20059.

It is an arithmetic number, because the mean of its divisors is an integer number (1250865).

Almost surely, 2^8140345 is an apocalyptic number.

It is an amenable number.

8140345 is a deficient number, since it is larger than the sum of its proper divisors (1866575).

8140345 is a wasteful number, since it uses less digits than its factorization.

8140345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39755.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 8140345 is about 2853.1289841155. The cubic root of 8140345 is about 201.1627684139.

The spelling of 8140345 in words is "eight million, one hundred forty thousand, three hundred forty-five".