80465221 has 2 divisors, whose sum is σ = 80465222. Its totient is φ = 80465220.

The previous prime is 80465219. The next prime is 80465237. The reversal of 80465221 is 12256408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59074596 + 21390625 = 7686^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 80465221 - 2¹ = 80465219 is a prime.

Together with 80465219, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80465221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80465251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40232610 + 40232611.

It is an arithmetic number, because the mean of its divisors is an integer number (40232611).

Almost surely, 2^80465221 is an apocalyptic number.

It is an amenable number.

80465221 is a deficient number, since it is larger than the sum of its proper divisors (1).

80465221 is an equidigital number, since it uses as much as digits as its factorization.

80465221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 80465221 is about 8970.2408551833. The cubic root of 80465221 is about 431.7205643872.

The spelling of 80465221 in words is "eighty million, four hundred sixty-five thousand, two hundred twenty-one".