45441161 has 4 divisors (see below), whose sum is σ = 46549524. Its totient is φ = 44332800.

The previous prime is 45441107. The next prime is 45441163. The reversal of 45441161 is 16114454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16114454 = 2 ⋅8057227.

It can be written as a sum of positive squares in 2 ways, for example, as 8231161 + 37210000 = 2869^2 + 6100^2 .

It is a cyclic number.

It is not a de Polignac number, because 45441161 - 2²² = 41246857 is a prime.

It is a super-2 number, since 2×45441161² = 4129798226055842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45441161.

It is not an unprimeable number, because it can be changed into a prime (45441163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554120 + ... + 554201.

It is an arithmetic number, because the mean of its divisors is an integer number (11637381).

Almost surely, 2^45441161 is an apocalyptic number.

45441161 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45441161 is a deficient number, since it is larger than the sum of its proper divisors (1108363).

45441161 is a wasteful number, since it uses less digits than its factorization.

45441161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108362.

The product of its digits is 1920, while the sum is 26.

The square root of 45441161 is about 6741.0059338351. The cubic root of 45441161 is about 356.8478953020.

The spelling of 45441161 in words is "forty-five million, four hundred forty-one thousand, one hundred sixty-one".