8130522 has 32 divisors (see below), whose sum is σ = 17452800. Its totient is φ = 2515968.

The previous prime is 8130509. The next prime is 8130547. The reversal of 8130522 is 2250318.

It is a super-2 number, since 2×8130522² = 132210775984968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7554 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (545400).

Almost surely, 2^8130522 is an apocalyptic number.

8130522 is an abundant number, since it is smaller than the sum of its proper divisors (9322278).

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

8130522 is a wasteful number, since it uses less digits than its factorization.

8130522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110.

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

The square root of 8130522 is about 2851.4070211038. The cubic root of 8130522 is about 201.0818210981.

It can be divided in two parts, 81 and 30522, that added together give a palindrome (30603).

The spelling of 8130522 in words is "eight million, one hundred thirty thousand, five hundred twenty-two".