80209101 has 8 divisors (see below), whose sum is σ = 122223424. Its totient is φ = 45833760.

The previous prime is 80209097. The next prime is 80209109. The reversal of 80209101 is 10190208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80209101 - 2² = 80209097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 3819481 = 80209101 / (8 + 0 + 2 + 0 + 9 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80209109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1909720 + ... + 1909761.

It is an arithmetic number, because the mean of its divisors is an integer number (15277928).

Almost surely, 2^80209101 is an apocalyptic number.

It is an amenable number.

80209101 is a deficient number, since it is larger than the sum of its proper divisors (42014323).

80209101 is a wasteful number, since it uses less digits than its factorization.

80209101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819491.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 80209101 is about 8955.9533830855. The cubic root of 80209101 is about 431.2620234413.

Adding to 80209101 its reverse (10190208), we get a palindrome (90399309).

The spelling of 80209101 in words is "eighty million, two hundred nine thousand, one hundred one".