80331269 has 2 divisors, whose sum is σ = 80331270. Its totient is φ = 80331268.

The previous prime is 80331257. The next prime is 80331283. The reversal of 80331269 is 96213308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77968900 + 2362369 = 8830^2 + 1537^2 .

It is a cyclic number.

It is not a de Polignac number, because 80331269 - 2¹² = 80327173 is a prime.

It is a super-2 number, since 2×80331269² = 12906225558300722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80334269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40165634 + 40165635.

It is an arithmetic number, because the mean of its divisors is an integer number (40165635).

Almost surely, 2^80331269 is an apocalyptic number.

It is an amenable number.

80331269 is a deficient number, since it is larger than the sum of its proper divisors (1).

80331269 is an equidigital number, since it uses as much as digits as its factorization.

80331269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 80331269 is about 8962.7712790186. The cubic root of 80331269 is about 431.4808668211.

The spelling of 80331269 in words is "eighty million, three hundred thirty-one thousand, two hundred sixty-nine".