80220631 has 2 divisors, whose sum is σ = 80220632. Its totient is φ = 80220630.

The previous prime is 80220617. The next prime is 80220659. The reversal of 80220631 is 13602208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80220631 - 2¹³ = 80212439 is a prime.

It is a super-2 number, since 2×80220631² = 12870699276076322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80220691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40110315 + 40110316.

It is an arithmetic number, because the mean of its divisors is an integer number (40110316).

Almost surely, 2^80220631 is an apocalyptic number.

80220631 is a deficient number, since it is larger than the sum of its proper divisors (1).

80220631 is an equidigital number, since it uses as much as digits as its factorization.

80220631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 80220631 is about 8956.5970658504. The cubic root of 80220631 is about 431.2826869854.

Adding to 80220631 its reverse (13602208), we get a palindrome (93822839).

The spelling of 80220631 in words is "eighty million, two hundred twenty thousand, six hundred thirty-one".