80412281 has 2 divisors, whose sum is σ = 80412282. Its totient is φ = 80412280.

The previous prime is 80412271. The next prime is 80412373. The reversal of 80412281 is 18221408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52417600 + 27994681 = 7240^2 + 5291^2 .

It is a cyclic number.

It is not a de Polignac number, because 80412281 - 2¹⁰ = 80411257 is a prime.

It is a super-2 number, since 2×80412281² = 12932269871245922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80412281.

It is not a weakly prime, because it can be changed into another prime (80412251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40206140 + 40206141.

It is an arithmetic number, because the mean of its divisors is an integer number (40206141).

Almost surely, 2^80412281 is an apocalyptic number.

It is an amenable number.

80412281 is a deficient number, since it is larger than the sum of its proper divisors (1).

80412281 is an equidigital number, since it uses as much as digits as its factorization.

80412281 is an odious number, because the sum of its binary digits is odd.

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

The square root of 80412281 is about 8967.2895012930. The cubic root of 80412281 is about 431.6258638422.

Adding to 80412281 its reverse (18221408), we get a palindrome (98633689).

The spelling of 80412281 in words is "eighty million, four hundred twelve thousand, two hundred eighty-one".