43448161 has 4 divisors (see below), whose sum is σ = 43832772. Its totient is φ = 43063552.

The previous prime is 43448149. The next prime is 43448179. The reversal of 43448161 is 16184434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19633761 + 23814400 = 4431^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 43448161 - 2⁵ = 43448129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43448261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192136 + ... + 192361.

It is an arithmetic number, because the mean of its divisors is an integer number (10958193).

Almost surely, 2^43448161 is an apocalyptic number.

It is an amenable number.

43448161 is a deficient number, since it is larger than the sum of its proper divisors (384611).

43448161 is a wasteful number, since it uses less digits than its factorization.

43448161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384610.

The product of its digits is 9216, while the sum is 31.

The square root of 43448161 is about 6591.5219031723. The cubic root of 43448161 is about 351.5527231559.

The spelling of 43448161 in words is "forty-three million, four hundred forty-eight thousand, one hundred sixty-one".