8140591 has 8 divisors (see below), whose sum is σ = 8387568. Its totient is φ = 7896000.

The previous prime is 8140589. The next prime is 8140609. The reversal of 8140591 is 1950418.

It is a happy number.

8140591 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8140591 - 2¹ = 8140589 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 (8140571) 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, 8181 + ... + 9121.

It is an arithmetic number, because the mean of its divisors is an integer number (1048446).

Almost surely, 2^8140591 is an apocalyptic number.

8140591 is a deficient number, since it is larger than the sum of its proper divisors (246977).

8140591 is a wasteful number, since it uses less digits than its factorization.

8140591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 8140591 is about 2853.1720943539. The cubic root of 8140591 is about 201.1647947630.

The spelling of 8140591 in words is "eight million, one hundred forty thousand, five hundred ninety-one".