80545330 has 8 divisors (see below), whose sum is σ = 144981612. Its totient is φ = 32218128.

The previous prime is 80545327. The next prime is 80545331. The reversal of 80545330 is 3354508.

80545330 = 1129² + 1130² + ... + 1188².

It can be written as a sum of positive squares in 2 ways, for example, as 72777961 + 7767369 = 8531^2 + 2787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (80545331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4027257 + ... + 4027276.

Almost surely, 2^80545330 is an apocalyptic number.

80545330 is a deficient number, since it is larger than the sum of its proper divisors (64436282).

80545330 is a wasteful number, since it uses less digits than its factorization.

80545330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054540.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 80545330 is about 8974.7050090797. The cubic root of 80545330 is about 431.8637866449.

Adding to 80545330 its reverse (3354508), we get a palindrome (83899838).

The spelling of 80545330 in words is "eighty million, five hundred forty-five thousand, three hundred thirty".