97184561 has 2 divisors, whose sum is σ = 97184562. Its totient is φ = 97184560.

The previous prime is 97184551. The next prime is 97184573. The reversal of 97184561 is 16548179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86583025 + 10601536 = 9305^2 + 3256^2 .

It is a cyclic number.

It is not a de Polignac number, because 97184561 - 2¹⁴ = 97168177 is a prime.

It is not a weakly prime, because it can be changed into another prime (97184501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48592280 + 48592281.

It is an arithmetic number, because the mean of its divisors is an integer number (48592281).

Almost surely, 2^97184561 is an apocalyptic number.

It is an amenable number.

97184561 is a deficient number, since it is larger than the sum of its proper divisors (1).

97184561 is an equidigital number, since it uses as much as digits as its factorization.

97184561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 97184561 is about 9858.2230143165. The cubic root of 97184561 is about 459.7613144201.

The spelling of 97184561 in words is "ninety-seven million, one hundred eighty-four thousand, five hundred sixty-one".