8140530 has 16 divisors (see below), whose sum is σ = 19537344. Its totient is φ = 2170800.

The previous prime is 8140529. The next prime is 8140537. The reversal of 8140530 is 350418.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8140497 and 8140506.

It is not an unprimeable number, because it can be changed into a prime (8140537) 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, 135646 + ... + 135705.

It is an arithmetic number, because the mean of its divisors is an integer number (1221084).

Almost surely, 2^8140530 is an apocalyptic number.

8140530 is an abundant number, since it is smaller than the sum of its proper divisors (11396814).

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

8140530 is a wasteful number, since it uses less digits than its factorization.

8140530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271361.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 8140530 is about 2853.1614044775. The cubic root of 8140530 is about 201.1642922982.

Adding to 8140530 its reverse (350418), we get a palindrome (8490948).

The spelling of 8140530 in words is "eight million, one hundred forty thousand, five hundred thirty".