1445860161 has 6 divisors (see below), whose sum is σ = 2088464690. Its totient is φ = 963906768.

The previous prime is 1445860153. The next prime is 1445860187. The reversal of 1445860161 is 1610685441.

1445860161 is a `hidden beast` number, since 1 + 4 + 45 + 8 + 601 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1434970161 + 10890000 = 37881^2 + 3300^2 .

It is not a de Polignac number, because 1445860161 - 2³ = 1445860153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445860861) 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 in 5 ways as a sum of consecutive naturals, for example, 80325556 + ... + 80325573.

Almost surely, 2^1445860161 is an apocalyptic number.

It is an amenable number.

1445860161 is a deficient number, since it is larger than the sum of its proper divisors (642604529).

1445860161 is a wasteful number, since it uses less digits than its factorization.

1445860161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160651135 (or 160651132 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1445860161 is about 38024.4679252715. The cubic root of 1445860161 is about 1130.7730009945.

The spelling of 1445860161 in words is "one billion, four hundred forty-five million, eight hundred sixty thousand, one hundred sixty-one".