410891161 has 2 divisors, whose sum is σ = 410891162. Its totient is φ = 410891160.

The previous prime is 410891149. The next prime is 410891167. The reversal of 410891161 is 161198014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238887936 + 172003225 = 15456^2 + 13115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-410891161 is a prime.

It is not a weakly prime, because it can be changed into another prime (410891167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205445580 + 205445581.

It is an arithmetic number, because the mean of its divisors is an integer number (205445581).

Almost surely, 2^410891161 is an apocalyptic number.

It is an amenable number.

410891161 is a deficient number, since it is larger than the sum of its proper divisors (1).

410891161 is an equidigital number, since it uses as much as digits as its factorization.

410891161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 410891161 is about 20270.4504390011. The cubic root of 410891161 is about 743.4337384174.

The spelling of 410891161 in words is "four hundred ten million, eight hundred ninety-one thousand, one hundred sixty-one".