80202081 has 32 divisors (see below), whose sum is σ = 116640000. Its totient is φ = 48866048.

The previous prime is 80202079. The next prime is 80202119. The reversal of 80202081 is 18020208.

It is a cyclic number.

It is not a de Polignac number, because 80202081 - 2¹ = 80202079 is a prime.

It is a super-2 number, since 2×80202081² = 12864747593461122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80202041) 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 31 ways as a sum of consecutive naturals, for example, 298015 + ... + 298283.

It is an arithmetic number, because the mean of its divisors is an integer number (3645000).

Almost surely, 2^80202081 is an apocalyptic number.

It is an amenable number.

80202081 is a deficient number, since it is larger than the sum of its proper divisors (36437919).

80202081 is a wasteful number, since it uses less digits than its factorization.

80202081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 80202081 is about 8955.5614564359. The cubic root of 80202081 is about 431.2494415452.

Adding to 80202081 its reverse (18020208), we get a palindrome (98222289).

It can be divided in two parts, 8020 and 2081, that added together give a palindrome (10101).

The spelling of 80202081 in words is "eighty million, two hundred two thousand, eighty-one".