80021241 has 6 divisors (see below), whose sum is σ = 115586250. Its totient is φ = 53347488.

The previous prime is 80021239. The next prime is 80021243. The reversal of 80021241 is 14212008.

It is an interprime number because it is at equal distance from previous prime (80021239) and next prime (80021243).

It can be written as a sum of positive squares in only one way, i.e., 52142841 + 27878400 = 7221^2 + 5280^2 .

It is not a de Polignac number, because 80021241 - 2¹ = 80021239 is a prime.

It is a super-2 number, since 2×80021241² = 12806798022360162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80021243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4445616 + ... + 4445633.

It is an arithmetic number, because the mean of its divisors is an integer number (19264375).

Almost surely, 2^80021241 is an apocalyptic number.

It is an amenable number.

80021241 is a deficient number, since it is larger than the sum of its proper divisors (35565009).

80021241 is a wasteful number, since it uses less digits than its factorization.

80021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891255 (or 8891252 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 80021241 is about 8945.4592391895. The cubic root of 80021241 is about 430.9250699211.

Adding to 80021241 its reverse (14212008), we get a palindrome (94233249).

The spelling of 80021241 in words is "eighty million, twenty-one thousand, two hundred forty-one".