94195561 has 2 divisors, whose sum is σ = 94195562. Its totient is φ = 94195560.

The previous prime is 94195547. The next prime is 94195601. The reversal of 94195561 is 16559149.

It is an a-pointer prime, because the next prime (94195601) can be obtained adding 94195561 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58614336 + 35581225 = 7656^2 + 5965^2 .

It is a cyclic number.

It is not a de Polignac number, because 94195561 - 2⁷ = 94195433 is a prime.

It is not a weakly prime, because it can be changed into another prime (94190561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47097780 + 47097781.

It is an arithmetic number, because the mean of its divisors is an integer number (47097781).

Almost surely, 2^94195561 is an apocalyptic number.

It is an amenable number.

94195561 is a deficient number, since it is larger than the sum of its proper divisors (1).

94195561 is an equidigital number, since it uses as much as digits as its factorization.

94195561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 40.

The square root of 94195561 is about 9705.4397633492. The cubic root of 94195561 is about 454.9986893655.

The spelling of 94195561 in words is "ninety-four million, one hundred ninety-five thousand, five hundred sixty-one".