97180163 has 4 divisors (see below), whose sum is σ = 97199880. Its totient is φ = 97160448.

The previous prime is 97180157. The next prime is 97180207. The reversal of 97180163 is 36108179.

It is a Cunningham number, because it is equal to 9858²-1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 97180163 - 2⁴ = 97180147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97180063) 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 3 ways as a sum of consecutive naturals, for example, 4928 + ... + 14786.

It is an arithmetic number, because the mean of its divisors is an integer number (24299970).

Almost surely, 2^97180163 is an apocalyptic number.

97180163 is a deficient number, since it is larger than the sum of its proper divisors (19717).

97180163 is an equidigital number, since it uses as much as digits as its factorization.

97180163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19716.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 97180163 is about 9857.9999492798. Note that the first 4 decimals coincide. The cubic root of 97180163 is about 459.7543789537.

The spelling of 97180163 in words is "ninety-seven million, one hundred eighty thousand, one hundred sixty-three".