8521320182 has 4 divisors (see below), whose sum is σ = 12781980276. Its totient is φ = 4260660090.

The previous prime is 8521320167. The next prime is 8521320211. The reversal of 8521320182 is 2810231258.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×8521320182² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2130330044 + ... + 2130330047.

It is an arithmetic number, because the mean of its divisors is an integer number (3195495069).

Almost surely, 2^8521320182 is an apocalyptic number.

8521320182 is a deficient number, since it is larger than the sum of its proper divisors (4260660094).

8521320182 is a wasteful number, since it uses less digits than its factorization.

8521320182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260660093.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 8521320182 is about 92310.9970805212. The cubic root of 8521320182 is about 2042.5324327885.

The spelling of 8521320182 in words is "eight billion, five hundred twenty-one million, three hundred twenty thousand, one hundred eighty-two".