94561813 has 2 divisors, whose sum is σ = 94561814. Its totient is φ = 94561812.

The previous prime is 94561801. The next prime is 94561829. The reversal of 94561813 is 31816549.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93257649 + 1304164 = 9657^2 + 1142^2 .

It is a cyclic number.

It is not a de Polignac number, because 94561813 - 2⁵ = 94561781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94561843) 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 as a sum of consecutive naturals, namely, 47280906 + 47280907.

It is an arithmetic number, because the mean of its divisors is an integer number (47280907).

Almost surely, 2^94561813 is an apocalyptic number.

It is an amenable number.

94561813 is a deficient number, since it is larger than the sum of its proper divisors (1).

94561813 is an equidigital number, since it uses as much as digits as its factorization.

94561813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 94561813 is about 9724.2898455363. The cubic root of 94561813 is about 455.5876366616.

The spelling of 94561813 in words is "ninety-four million, five hundred sixty-one thousand, eight hundred thirteen".