80501845 has 8 divisors (see below), whose sum is σ = 97925976. Its totient is φ = 63518976.

The previous prime is 80501843. The next prime is 80501873. The reversal of 80501845 is 54810508.

It can be written as a sum of positive squares in 4 ways, for example, as 10712529 + 69789316 = 3273^2 + 8354^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 80501845 - 2¹ = 80501843 is a prime.

It is a Duffinian number.

80501845 is a modest number, since divided by 1845 gives 805 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80501843) 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 7 ways as a sum of consecutive naturals, for example, 109912 + ... + 110641.

It is an arithmetic number, because the mean of its divisors is an integer number (12240747).

Almost surely, 2^80501845 is an apocalyptic number.

It is an amenable number.

80501845 is a deficient number, since it is larger than the sum of its proper divisors (17424131).

80501845 is a wasteful number, since it uses less digits than its factorization.

80501845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220631.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 80501845 is about 8972.2820397043. The cubic root of 80501845 is about 431.7860541127.

The spelling of 80501845 in words is "eighty million, five hundred one thousand, eight hundred forty-five".