8539140 has 24 divisors (see below), whose sum is σ = 23909760. Its totient is φ = 2277088.

The previous prime is 8539121. The next prime is 8539147. The reversal of 8539140 is 419358.

8539140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8539098 and 8539107.

It is not an unprimeable number, because it can be changed into a prime (8539147) 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, 71100 + ... + 71219.

It is an arithmetic number, because the mean of its divisors is an integer number (996240).

Almost surely, 2^8539140 is an apocalyptic number.

It is an amenable number.

8539140 is an abundant number, since it is smaller than the sum of its proper divisors (15370620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8539140 is a wasteful number, since it uses less digits than its factorization.

8539140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142331 (or 142329 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 8539140 is about 2922.1806925651. The cubic root of 8539140 is about 204.3955225396.

The spelling of 8539140 in words is "eight million, five hundred thirty-nine thousand, one hundred forty".