80224181 has 4 divisors (see below), whose sum is σ = 80291532. Its totient is φ = 80156832.

The previous prime is 80224171. The next prime is 80224189. The reversal of 80224181 is 18142208.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30747025 + 49477156 = 5545^2 + 7034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80224181 is a prime.

It is a super-2 number, since 2×80224181² = 12871838434241522, 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 80224181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80224189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31856 + ... + 34281.

It is an arithmetic number, because the mean of its divisors is an integer number (20072883).

Almost surely, 2^80224181 is an apocalyptic number.

It is an amenable number.

80224181 is a deficient number, since it is larger than the sum of its proper divisors (67351).

80224181 is a wasteful number, since it uses less digits than its factorization.

80224181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67350.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 80224181 is about 8956.7952416029. The cubic root of 80224181 is about 431.2890487360.

Adding to 80224181 its reverse (18142208), we get a palindrome (98366389).

The spelling of 80224181 in words is "eighty million, two hundred twenty-four thousand, one hundred eighty-one".