10194881 has 2 divisors, whose sum is σ = 10194882. Its totient is φ = 10194880.

The previous prime is 10194857. The next prime is 10194889. The reversal of 10194881 is 18849101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7929856 + 2265025 = 2816^2 + 1505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10194881 is a prime.

It is a super-2 number, since 2×10194881² = 207871197208322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10194889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5097440 + 5097441.

It is an arithmetic number, because the mean of its divisors is an integer number (5097441).

Almost surely, 2^10194881 is an apocalyptic number.

It is an amenable number.

10194881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10194881 is an equidigital number, since it uses as much as digits as its factorization.

10194881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 10194881 is about 3192.9423734230. The cubic root of 10194881 is about 216.8340027481.

The spelling of 10194881 in words is "ten million, one hundred ninety-four thousand, eight hundred eighty-one".