80802101 has 2 divisors, whose sum is σ = 80802102. Its totient is φ = 80802100.

The previous prime is 80802083. The next prime is 80802143. The reversal of 80802101 is 10120808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79299025 + 1503076 = 8905^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 80802101 - 2²⁶ = 13693237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80802401) 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 as a sum of consecutive naturals, namely, 40401050 + 40401051.

It is an arithmetic number, because the mean of its divisors is an integer number (40401051).

Almost surely, 2^80802101 is an apocalyptic number.

It is an amenable number.

80802101 is a deficient number, since it is larger than the sum of its proper divisors (1).

80802101 is an equidigital number, since it uses as much as digits as its factorization.

80802101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 80802101 is about 8988.9988875291. The cubic root of 80802101 is about 432.3222136733.

Adding to 80802101 its sum of digits (20), we get a square (80802121 = 8989²).

Adding to 80802101 its reverse (10120808), we get a palindrome (90922909).

The spelling of 80802101 in words is "eighty million, eight hundred two thousand, one hundred one".