80101205 has 4 divisors (see below), whose sum is σ = 96121452. Its totient is φ = 64080960.

The previous prime is 80101201. The next prime is 80101211. The reversal of 80101205 is 50210108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42915601 + 37185604 = 6551^2 + 6098^2 .

It is not a de Polignac number, because 80101205 - 2² = 80101201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80101201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8010116 + ... + 8010125.

It is an arithmetic number, because the mean of its divisors is an integer number (24030363).

Almost surely, 2^80101205 is an apocalyptic number.

It is an amenable number.

80101205 is a deficient number, since it is larger than the sum of its proper divisors (16020247).

80101205 is a wasteful number, since it uses less digits than its factorization.

80101205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16020246.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 80101205 is about 8949.9276533389. The cubic root of 80101205 is about 431.0685610754.

The spelling of 80101205 in words is "eighty million, one hundred one thousand, two hundred five".