80318529 has 36 divisors (see below), whose sum is σ = 124815600. Its totient is φ = 49748688.

The previous prime is 80318521. The next prime is 80318543. The reversal of 80318529 is 92581308.

It is not a de Polignac number, because 80318529 - 2³ = 80318521 is a prime.

It is a super-2 number, since 2×80318529² = 12902132201447682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80318493 and 80318502.

It is not an unprimeable number, because it can be changed into a prime (80318521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 191482 + ... + 191900.

It is an arithmetic number, because the mean of its divisors is an integer number (3467100).

Almost surely, 2^80318529 is an apocalyptic number.

It is an amenable number.

80318529 is a deficient number, since it is larger than the sum of its proper divisors (44497071).

80318529 is a wasteful number, since it uses less digits than its factorization.

80318529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 80318529 is about 8962.0605331587. The cubic root of 80318529 is about 431.4580556255.

The spelling of 80318529 in words is "eighty million, three hundred eighteen thousand, five hundred twenty-nine".