80516197 has 4 divisors (see below), whose sum is σ = 80682016. Its totient is φ = 80350380.

The previous prime is 80516147. The next prime is 80516213. The reversal of 80516197 is 79161508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80516197 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 (80516147) 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, 82179 + ... + 83152.

It is an arithmetic number, because the mean of its divisors is an integer number (20170504).

Almost surely, 2^80516197 is an apocalyptic number.

It is an amenable number.

80516197 is a deficient number, since it is larger than the sum of its proper divisors (165819).

80516197 is a wasteful number, since it uses less digits than its factorization.

80516197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165818.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 80516197 is about 8973.0818005856. The cubic root of 80516197 is about 431.8117124282.

The spelling of 80516197 in words is "eighty million, five hundred sixteen thousand, one hundred ninety-seven".