80315221 has 8 divisors (see below), whose sum is σ = 91990784. Its totient is φ = 68690160.

The previous prime is 80315219. The next prime is 80315243. The reversal of 80315221 is 12251308.

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

It is not a de Polignac number, because 80315221 - 2¹ = 80315219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80315192 and 80315201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80315281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9150 + ... + 15631.

It is an arithmetic number, because the mean of its divisors is an integer number (11498848).

Almost surely, 2^80315221 is an apocalyptic number.

It is an amenable number.

80315221 is a deficient number, since it is larger than the sum of its proper divisors (11675563).

80315221 is a wasteful number, since it uses less digits than its factorization.

80315221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25251.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 80315221 is about 8961.8759754864. The cubic root of 80315221 is about 431.4521321985.

Adding to 80315221 its reverse (12251308), we get a palindrome (92566529).

The spelling of 80315221 in words is "eighty million, three hundred fifteen thousand, two hundred twenty-one".