97185071 has 4 divisors (see below), whose sum is σ = 97473792. Its totient is φ = 96896352.

The previous prime is 97185043. The next prime is 97185083. The reversal of 97185071 is 17058179.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97185071 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 (97185091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143855 + ... + 144528.

It is an arithmetic number, because the mean of its divisors is an integer number (24368448).

Almost surely, 2^97185071 is an apocalyptic number.

97185071 is a deficient number, since it is larger than the sum of its proper divisors (288721).

97185071 is a wasteful number, since it uses less digits than its factorization.

97185071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288720.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 97185071 is about 9858.2488810133. The cubic root of 97185071 is about 459.7621186557.

The spelling of 97185071 in words is "ninety-seven million, one hundred eighty-five thousand, seventy-one".