449195161 has 2 divisors, whose sum is σ = 449195162. Its totient is φ = 449195160.

The previous prime is 449195119. The next prime is 449195171. The reversal of 449195161 is 161591944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409819536 + 39375625 = 20244^2 + 6275^2 .

It is a cyclic number.

It is not a de Polignac number, because 449195161 - 2¹⁵ = 449162393 is a prime.

It is not a weakly prime, because it can be changed into another prime (449195171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224597580 + 224597581.

It is an arithmetic number, because the mean of its divisors is an integer number (224597581).

Almost surely, 2^449195161 is an apocalyptic number.

It is an amenable number.

449195161 is a deficient number, since it is larger than the sum of its proper divisors (1).

449195161 is an equidigital number, since it uses as much as digits as its factorization.

449195161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 40.

The square root of 449195161 is about 21194.2247086323. The cubic root of 449195161 is about 765.8523036686.

The spelling of 449195161 in words is "four hundred forty-nine million, one hundred ninety-five thousand, one hundred sixty-one".