80445331 has 4 divisors (see below), whose sum is σ = 80543200. Its totient is φ = 80347464.

The previous prime is 80445317. The next prime is 80445349. The reversal of 80445331 is 13354408.

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

It is a cyclic number.

It is not a de Polignac number, because 80445331 - 2¹³ = 80437139 is a prime.

It is a super-2 number, since 2×80445331² = 12942902559399122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80445331.

It is not an unprimeable number, because it can be changed into a prime (80445311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47691 + ... + 49348.

It is an arithmetic number, because the mean of its divisors is an integer number (20135800).

Almost surely, 2^80445331 is an apocalyptic number.

80445331 is a deficient number, since it is larger than the sum of its proper divisors (97869).

80445331 is an equidigital number, since it uses as much as digits as its factorization.

80445331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97868.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 80445331 is about 8969.1321207796. The cubic root of 80445331 is about 431.6849894745.

Adding to 80445331 its reverse (13354408), we get a palindrome (93799739).

The spelling of 80445331 in words is "eighty million, four hundred forty-five thousand, three hundred thirty-one".