445115161 has 2 divisors, whose sum is σ = 445115162. Its totient is φ = 445115160.

The previous prime is 445115149. The next prime is 445115173. The reversal of 445115161 is 161511544.

It is a balanced prime because it is at equal distance from previous prime (445115149) and next prime (445115173).

It can be written as a sum of positive squares in only one way, i.e., 416160000 + 28955161 = 20400^2 + 5381^2 .

It is a cyclic number.

It is not a de Polignac number, because 445115161 - 2⁵ = 445115129 is a prime.

It is not a weakly prime, because it can be changed into another prime (446115161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222557580 + 222557581.

It is an arithmetic number, because the mean of its divisors is an integer number (222557581).

Almost surely, 2^445115161 is an apocalyptic number.

It is an amenable number.

445115161 is a deficient number, since it is larger than the sum of its proper divisors (1).

445115161 is an equidigital number, since it uses as much as digits as its factorization.

445115161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 28.

The square root of 445115161 is about 21097.7525106349. The cubic root of 445115161 is about 763.5265248168.

The spelling of 445115161 in words is "four hundred forty-five million, one hundred fifteen thousand, one hundred sixty-one".