97105187 has 2 divisors, whose sum is σ = 97105188. Its totient is φ = 97105186.

The previous prime is 97105163. The next prime is 97105193. The reversal of 97105187 is 78150179.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97105187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97105187.

It is not a weakly prime, because it can be changed into another prime (97105087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48552593 + 48552594.

It is an arithmetic number, because the mean of its divisors is an integer number (48552594).

Almost surely, 2^97105187 is an apocalyptic number.

97105187 is a deficient number, since it is larger than the sum of its proper divisors (1).

97105187 is an equidigital number, since it uses as much as digits as its factorization.

97105187 is an evil number, because the sum of its binary digits is even.

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

The square root of 97105187 is about 9854.1964157409. The cubic root of 97105187 is about 459.6361126605.

The spelling of 97105187 in words is "ninety-seven million, one hundred five thousand, one hundred eighty-seven".