45004161 has 4 divisors (see below), whose sum is σ = 60005552. Its totient is φ = 30002772.

The previous prime is 45004147. The next prime is 45004163. The reversal of 45004161 is 16140054.

45004161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45004161 - 2⁶ = 45004097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45004163) 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 3 ways as a sum of consecutive naturals, for example, 7500691 + ... + 7500696.

It is an arithmetic number, because the mean of its divisors is an integer number (15001388).

Almost surely, 2^45004161 is an apocalyptic number.

It is an amenable number.

45004161 is a deficient number, since it is larger than the sum of its proper divisors (15001391).

45004161 is a wasteful number, since it uses less digits than its factorization.

45004161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001390.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 45004161 is about 6708.5140679587. The cubic root of 45004161 is about 355.7002932467.

The spelling of 45004161 in words is "forty-five million, four thousand, one hundred sixty-one".